definitive tire, wheel, and offset thread

[kismetcapitan]

I've noticed that there are numerous threads regarding wheels, offsets, and tire sizes. It would be good to collect all of the info on what we know works, what modifications are required, in one thread with a sticky.

To start with - my stock wheels, 255/40R18 rubber, 10mm spacers, work with no rubbing when the front fenders are rolled. If the rears were rolled as well, I think 12mm, possibly even 15mm spacers, could work.

So whatever the stock offset is (anyone? anyone?), we know that we can add (subtract, technically) 10mm to that, with 18x8.5 wheels.

It would be great to have a chart of sorts, so that we can look up sizes and then choose wheels accordingly.

[terrytcl]

here's what i've had -

19x8.5 33 offset with 255/35/19 - cleared fine
20x8.5 34 offset with 265/30/20 - cleared fine with nub on the upright ground down
19x9.5 45 offset with 265/35/19 - cleared fine with 15mm spacer and nub removed on the upright.

[johnnie27]

stock 19x9 ET 35 255/35/19 std fitment no issues no spacers can run any ride height you want
me 19x9.5 ET 30 255/35/19 no fitment issues car lowered (cannot run a wider tyre w/out rubbing)

john

[kismetcapitan]

ok, I'm insomniated and have decided to do a little research.

for starters: rim width vs tire size
8.5" = 255
9" = 265
9.5" = 275
10" = 285 (has 285s been mounted before??)

tire sizes within acceptable range:
255/40R18
265/40R18 (larger than stock)
265/35R18 (smaller than stock)
285/35R18 (smaller than stock)

255/35R19 (same as stock)
265/35R19 (larger than stock)
275/30R19 (smaller than stock)
285/30R19 (smaller than stock)

with 8.5" width:
stock offset = 30mm, 20mm maximum with front fender rolling

by doing some math...
9" width = maximum offset 27mm
9.5" = maximum offset 34mm
10" = maximum offset 41mm

Do these numbers look right? I'm no tire expert, but having a chart like this would be immensely useful.

I don't know at what point filing down the nub on the inside suspension arm is required.

[HT MOtorsport]

Here's a useful online calculator for offset too http://www.1010tires.com/WheelOffsetCalculator.asp

Once my new wheels and tires get here and I see if they fit Ill add the info on those.

[NSU RS6]

I am running 19 x 9 et 33 S5 Speedlines in the C6 RS6 style. I applied a 8mm Spacer/Adapter to fit the larger hubcentric bore of the later model Audi wheel, and which also put me at an offset of et 25. The tires are 255/35-19 Michelin Pilot Super Sport. I am very happy with the set up, although I might be tempted to go 265/35/19 when the time comes. The 255/35-19 tires are slightly "stretched" on a 9" wide wheel - but there are quite a few people who go for this look, sometimes to the extremes. 265 would add a little curb protection.

[kismetcapitan]

ok, going through all the numerous wheel/tire threads, I have run into some confusion:

- the wheel hub for the USDM RS6 is 66.6mm, isn't it? I keep seeing references to a 57.1mm....I am pretty sure that the hubcentric spacers I ordered were 66.6mm
- the stock wheel: 18x8.5, yes? The ET is 30mm? 33?
- Euro stock wheel: 19x9? ET?

[repda503]

Stock wheel is 18x8.5 ET 30 5x112 bolt pattern and center bore of 57.1. You need adapters to go to the new 66.6 diameter. Wheels weight 30lbs stock. I have heard people having issues fitting a 265 on a 8.5 width wheel.

[repda503]

Question: Do I need to grind the nub on inside suspension if running 19x9.5 ET 30 with 275/30/19 PSS's on them? I notice the calculator says it will be 13mm less clearance.

[HT MOtorsport]

New shoes fit :)

275/35/18 Toyo Proxes R888 (Track tires) mounted on TSW Nurenburgring Flat Gunmetal 18x9.5 ET 40.

15mm ECS sapcers and 034 3" wheel stud kit.

They barely fit FYI. If the car was lowered a lot it would rub most likely. I will probably roll the fenders out a little more to give a bit more breathing space.

https://lh5.googleusercontent.com/-q3Rrt6i9Uq0/T9PfURMslnI/AAAAAAAAUTo/pODkZIZR8m0/s800/IMG_00117.jpg
https://lh5.googleusercontent.com/-HyvAfHklURY/T9PfW8Qeb9I/AAAAAAAAUTw/URILlMaU18Q/s800/IMG_00118.jpg
https://lh6.googleusercontent.com/-JxXQafCrpYA/T9PfbeIZooI/AAAAAAAAUUA/9dcDcL-wDsA/s800/IMG_00120.jpg
https://lh3.googleusercontent.com/-5rSnioih1y4/T9PfgZPSvAI/AAAAAAAAUUQ/u8SEt-HrNdQ/s800/IMG_00122.jpg

[kismetcapitan]

those are very, very sweet! Definitely lower the car - getting the wheels to fully fill out the arches has got to be one of the coolest things one can do to the RS6:
http://img.photobucket.com/albums/v191/tobereeno/file-110.jpg

[Tom Sawyer]

stock 19x9 ET 35 255/35/19 std fitment no issues no spacers can run any ride height you want
me 19x9.5 ET 30 255/35/19 no fitment issues car lowered (cannot run a wider tyre w/out rubbing)

john

Very interesting... so if 19x9et35 is stock, then I should be ok with 19x8.5@et32 running 255 35 19 with just hubcentric adapters (66 to 57) to run stock 19" A5/S5 wheels. These caught my eye recently:

A5 Wheels/Tires (http://www.ebay.com/itm/Audi-A5-19-inch-wheels-with-Continental-Extreme-Contact-tires-/200772664278?pt=Motors_Car_Truck_Parts_Accessories&hash=item2ebefbbbd6&vxp=mtr#ht_1390wt_1398)

[twinsteve]

I am seriously looking at getting custom made forged one-piece wheels from CCW....about $750 each including custom finish....if I stick to 18" (which I probably will for several reasons, namely the style I want they only make in 18 unless I want 19x10 which I don't), them width/offset is easy

If I wanted to do 18 but go a little wider than stock (say 18x9), then I would assume tire size 265/40/18 would fit just fine...would stock offset 30 still hold true or do I need different offset? Since they are custom made, I can get anything.....no immediate plans to lower, but that will change if/when DRC craps out

Thx!

[kilian tuning]

http://www.alloywheels.com/Tyre_Calculator

[twinsteve]

http://www.alloywheels.com/Tyre_Calculator

yep, thx.....my concern is really around offset....does offset need to change from stock 30et if I go up to 265 tire width on 18x9?

[bakes]

yep, thx.....my concern is really around offset....does offset need to change from stock 30et if I go up to 265 tire width on 18x9?

Well, logic says you may want to go to an offset of 25 due to the increased width of your rim. By keeping the offset the same and widening your rim you'd be basically pushing the rim inwards. I'm not sure how much clearance the factory settings allow for on the inside. That being said, my 19*10's are using an offset of 25 with no rubbing so that implies a 9" rim would be fine without changing the offset.

[ttboost]

I just got new (used) sneakers too...

Volk VR G2. 19x9.5 ET29 (on all 4 corners) (stock RS4 size)
Michelin Pilot 12841Super sport 275-30-19

No spacers and no rubbing...fit perfect
and I just lost 10lbs of rotating weight per corner12840

[repda503]

http://www.audizine.com/classifieds/showproduct.php?product=80894

18x10 ET 33. I'm guessing ill need 5mm spacers but what do you guys think? Will they fit?

[johnnie27]

http://www.audizine.com/classifieds/showproduct.php?product=8089418x10 ET 33. I'm guessing ill need 5mm spacers but what do you guys think? Will they fit?

not if you want a lowered ride height and like to push her in the bends and bumps

mine 19x9.5 et 30, 255/35/19...

will rub rears on extreme occasions (i mean very extreme) like air-bourne at 110 mph

13262132631326413265

[repda503]

I think it was Elevens that has the 19x10 rotiform MIA's. not sure what his offset was but sounded like he made it work

[johnnie27]

I think it was Elevens that has the 19x10 rotiform MIA's. not sure what his offset was but sounded like he made it work

mate i am just telling you how it is for me (given my current set up) ...i cant go wider , lower, or any direction (further in or out) w/out causing BIG damage..i have lost a piece of the rear LHS felt gaurd liner allready..there is nothing to LIP on these cars (have a feel) unless the U.S car are different.

[Brav]

I have 19x10 Rotiforms, tried both ET 35 (MIA) with 5mm spacer. Now running same size wheel with ET25. Very aggressive, but no spacer, and most of the time no rubbing. the Michelin 275/30 R19 Super Sports are not the widest tire and stretch a little, so it helps with the rubbing issue. R888s are very square and wide, and would for sure rub on this config.

[repda503]

Thanks for the help guys. Wheel calculators for 25ET are saying inner clearance of 14mm less and outer position extends an extra 24mm. I'd be surprised to see that wheel fit based on those numbers.

[kismetcapitan]

just as added input, my stock wheels with 10mm spacers and H&R lowering springs rub. I rolled the fender lip, so it's not rubbing on the front fenders anymore, but I had to cut the plastic fender liner, and the wheels will rub on that occasionally. No big deal other than a scraping sound.

I remember asking Elevens for his wheel offset, meaning to memorize it forever, but of course now I've forgotten :(

[milka]

I just got new (used) sneakers too...

Volk VR G2. 19x9.5 ET29 (on all 4 corners) (stock RS4 size)
Michelin Pilot 12841Super sport 275-30-19

No spacers and no rubbing...fit perfect


Hey mate, I'm running stock B7 RS4 wheels with 255/35/19 tyres, the rims are actually 19*9 with a 29 offset not 9.5. Just to keep the numbers correct.

[ttboost]

OK Thanks. Just going off what I was told when I bought them from someone..never measured them. Could be 9..could be 9.5...I'll check when I can..you're probably right.

[milka]

Yeah not sure about yours or course but the B7 RS4 wheels are definately 9', would love to know if yours are 9.5 and how well they fit and what size and type of tyre you are running. I think tyre brand makes a lot of difference with rubbing.

[ttboost]

Yeah not sure about yours or course but the B7 RS4 wheels are definately 9', would love to know if yours are 9.5 and how well they fit and what size and type of tyre you are running. I think tyre brand makes a lot of difference with rubbing.


OK Confirmed. (I forgot I had my front wheels off for my 6 speed conversion.)
They are in fact Volk, VR G2, 19x9.5, ET29, with Michelin Pilot Super Sports, 275/30/19. No rubbing anywhere with stock height DRC.

[milka]

Nice, that's great to know, how do the 275s look on the 9.5' rims? I am trying to figure out whether to go 10' or 9.5 but looks like I will definitely be running 275/30/19s Super Sports now!

[ttboost]

They look OEM to me.

1326613267

[milka]

Yeah they look great!

[Elevens]

Rotoiform Mia's 19X10 ET 35. Fit well with 5mm spacers up front, none in the rear. No rubbing at all after removing the Upper most fender liner Screw on each side. This was with 275-35-19 Hankook Ventus tires. However when I switched to The Michelins (pilot Super Sports) of the same size, I experienced a little bit of rubbing on turns. So I used a rubber mallet to bang the inner fender lip closed. Now no rubbing at all. I guess there is no standard on tire measurements and that tires with the same dimensions may vary in actual width........

http://i831.photobucket.com/albums/zz237/vintron/20121214_103233_zps26870d0b.jpg

[dcsweet]

I have finally fitted my MTM 19" X 9.5 Bimoto wheels, ET30 ordered from Horchaus, Canada and shipped directly from Germany. I tried to fit Michelin PSS 275/35/19 because I thought I knew better than MTM. I was wrong, and it rubbed the upright, even with the 5mm spacers that I had included in the order.

Removed tires and installed Michelin PSS 275/30/19 and had no problems at all. No rubbing and a good fit at ET30. ET25 looked too wide for me, and the wheels were not flush with the fenders. Currently sitting at stock ride height with DRC. For now.

275's look great and the new wheels (and car) feel much more solid. The wheels are heavy compared to many others but it all seems fine and I am happy with them.

[Elevens]

Wheels look good, but good lord it looks like a bunny rabbit getting ready to leap. Just my opinion but its sitting way to high. I guess its that DRC thing. Good luck with the Wheels..................

[ben916]

I have finally fitted my MTM 19" X 9.5 Bimoto wheels, ET30 ordered from Horchaus, Canada and shipped directly from Germany. I tried to fit Michelin PSS 275/35/19 because I thought I knew better than MTM. I was wrong, and it rubbed the upright, even with the 5mm spacers that I had included in the order.

Removed tires and installed Michelin PSS 275/30/19 and had no problems at all. No rubbing and a good fit at ET30. ET25 looked too wide for me, and the wheels were not flush with the fenders. Currently sitting at stock ride height with DRC. For now.

275's look great and the new wheels (and car) feel much more solid. The wheels are heavy compared to many others but it all seems fine and I am happy with them.

I never get jealous but DAMN IT!!!!!!! Now some KWv3 or PSS9 and call it a day!

Also, do you have your fold-a-flat still in the trunk???

[dcsweet]

Ride height - I hear you.

DRC, phhhh. Just waiting for it to fail. So it won't fail because I am waiting. So maybe I should stop waiting.

Fold-flat still in the trunk with the nice design and black finish.

[lswing]

Looks a lot like my beast, rolling the 18" copycat version wheels, nice and level with Koni's. Blue with SE exhaust FTW!

[G2]

After 3 sets of spacers and several months gone by my wheel fitment has sorted itself out:

FRONT-

TSW Nurburgring 19x9.5 ET41
8mm Eibach spacers (effective ET33)
275/35 B-stone S-04's
Screws removed front front fender lip (one screw per side)
26" front ride height (ground to fender lip), raised 1/4" via KW3's.
Max OE spec Negative Camber
"De Nubbed" front uprights (leaving a slight mound)
Inner tire to upright clearance: appx 3mm (30 series tire would appreciably increase this)
No fender lip rubbing (have not pushed the car very hard in corners, but still fairly quick at times)
Slight tire to wheel well rubbing at full lock (due to larger diameter tire with 35 aspect ratio; plastic liner tends to warp, if fully flattened may not rub at all)

REAR-
No spacer, plenty of clearance (10-11" wheel with 295+ tire, perhaps??)

We test fit other tire sizes (265/35, 275/30, also B-stone S04's) but wanted to protect the wheel a bit more with the 275 width (and didn't care for the look of 30 series tire and reduced gearing effect).

This thread has been very helpful, so here's to putting in my 3 cents worth to hopefully add a little more momentum on the wheel fitment quest.

[Korben007]

anyone wanna guess if these will fit before i order.
19x.10.5 +32mm
275/30-19

[StevieG.]

Can someone post a pic of the ground nubs? I recently went from stock 18's to BBS-CHR 19x8.5's 32mm offset, and Continental 255/35 ZR19. They looked much more inside the back wells, so I had 15mm spacers put on all around. Now I am rubbing in the front with normal highway driving or the transitions on an offramp.

The calculator said to retract 2mm to maintain offset, but I am trying to get the tire as far to the outside as I can without rubbing just for appearances.

Not a real level surface....
135041350513506

[mik15]

here is an issue: original stock Euro wheels, bought from Audi yesterday, tires are Michelin PS3 255/35/19 brand new, somehow the tires on the front rub against the wheel bearing house on the upper side, how's this possible? is something wrong with the fishbone?

[G2]

I have some good pictures (of de-nubbed uprights) on my camera somewhere.... I ended up buying 3 sets of spacers to fine tune the fit (15,10 and 8mm). Finally got it figured out and sold the ones I didn't need.

I noticed the higher offset (more inboard) improved directional stability...my wheels are 19x9.5 with effective 32mm ET and 275/35's. Any lower offset and they rub on the outside.

Someone needs to make front fenders that can work with 10-11" wheels to match what the rears can fit.......

[G2]

Did you get the wheels? What brand makes a 10.5" width?

I think the wheel would fit, but only with a 30 series tire...

[tjb616]

Has anyone had success rolling the front fenders? And is anyone running 285's?

[Korben007]

Did you get the wheels? What brand makes a 10.5" width?I think the wheel would fit, but only with a 30 series tire...Work makes a 10.5. They actually make whatever you want but that's what I was looking at. I am still debating if I am.going to go 10 or 10.5. Right now I am at 18x9.5 all around +20mm in rear and +32mm in front with zero issues on a 245/40. Just rolled the front fenders as much as I could without pulling. Going with a 275 next just not sure on 10 or 10.5 yet. I'll get some pics up shortly.

[RobbertRS6]

At the moment my summer set up is 9Jx20 and ET 35, running with Michelin Pilot Sports 255-30. Needs a few mm spacer to clear the front calipers but nothing needed in the back.
The car is not lowered (yet).
Now looking to get BBS CH-R 9Jx20 with ET 25 for all 4 wheels. Will keep the same 255-30's on this.
Maybe I will get a slightly wider version (9,5 or 10,5) with 275-30 for the rear wheels or would that be a silly thing to do?

http://konfigurator.bbs.com/article/rims/car_selection/rim_selection/resetFilter/true/PKWIDCode/P00001260001298

[formula1man]

I have a set of 9.5 forgestars with a ET30 and running 265's (may go with 275 next set) of PSS's and they seem to do well. I did install KW v3's though which (after the 3rd time) made a huge ride improvement and no rubbing. I have to say I like the Forgestars as they look really nice and you can choose your own custom offset so you do not have to use spacers.

Cheers :)

[formula1man]

Oh yeah, the front fender rolling....I would be careful as when I rolled the fronts I found the hard ($575 at the body shop) that the uppermost portion where the inner fender cover attaches is difficult (if not impossibe) to roll.

Good luck...

[mdegracia]

I'm the market for new rubber and wondering if I can take 275 plunge!
Anyone running PSS (275 30 19) on factory rs4 wheels (19x9 et29) without the sidewall "mushrooming" effect?
Suspension setup - stock spring/koni configuration.

[ttboost]

I'm the market for new rubber and wondering if I can take 275 plunge!
Anyone running PSS (275 30 19) on factory rs4 wheels (19x9 et29) without the sidewall "mushrooming" effect?
Suspension setup - stock spring/koni configuration.

Yep. Not stock wheels, but stock RS4 size...19x9.5 ET29.

1368813689

[G2]

Work makes a 10.5. They actually make whatever you want but that's what I was looking at. I am still debating if I am.going to go 10 or 10.5. Right now I am at 18x9.5 all around +20mm in rear and +32mm in front with zero issues on a 245/40. Just rolled the front fenders as much as I could without pulling. Going with a 275 next just not sure on 10 or 10.5 yet. I'll get some pics up shortly.

Probably out of my price range, but sounds nice....a 275 will be somewhat stretched on a 10/10.5 wheel. Even with my 9.5" the 275 is slightly stretched looking, but seems to help flatten the tire edges and provide more tread contact. At least if I curb a tire, I've got some protection from the bead guard before chewing up metal. So far so good and not contact with anything so far.

I wanted to go with 285/30's but the extra expense and lack of choices wasn't worth it for me this time around. Round 2 should hopefully involve multi-piece wheels and possibly fender flares....

[Other_Erik]

Resurrecting a pretty old thread here... before I go and buy my brother's stock wheels from him, what will I need to make them fit?
Me: 2003 RS6 (see sig)
Him: 2012 S5 Coupe Prestige - 255/35R19

I know I need to adapt the hub from 57.1mm to 66.6mm, but any guesses on the thickness of the spacer?

Thanks
Other_Erik

[bmwade]

Resurrecting a pretty old thread here... before I go and buy my brother's stock wheels from him, what will I need to make them fit?
Me: 2003 RS6 (see sig)
Him: 2012 S5 Coupe Prestige - 255/35R19

I know I need to adapt the hub from 57.1mm to 66.6mm, but any guesses on the thickness of the spacer?

Thanks
Other_Erik

I think that's what my wheels were off of. I used 15mm hub-centric spacers and rolled my fenders to stop the rubbing.

[nistah]

To quote a previous poster on this topic: "I searched high and low. On this forum and others. I found anecdotal information for specifc wheels. I used calculators, but they just confuse me. Either I am blind or slow (likely both),:confused: but I cannot find" info on the setup I am looking into running: OEM Audi Speedline 19" Peeler wheels. I know these come in a variety of flavors from various Audi oem models. The set I am currently looking at is off a 2011 S4 with TPMS sensors.Would the peelers off an S4 or S5 be the best to put on RS6?
Not sure how many widths Audi made these in, think 8.5" and 9" are both available & no idea which is a better option for the RS6?
Also not sure which offsets on these wheels would be compatible with the RS6 without spacers? If spacers are necessary what size? Also as other Erik suggested above, think I'd need to adapt the hub from 57.1mm to 66.6mm. If anyone can educate me on this would be very helpful to know before I move forward and buy the wheels want to make sure they fit!! Thanks in advance:addict:

[ttboost]

I know a 19x9 with ET29 fits perfect with 275/30-19. ET (offset) is how much it sticks in or out. If a wheel is taller, it usually has to have a smaller offset (this will push it out), to mitigate rubbing on the inside, BUT you also have to contend with the outside rubbing. Tire size helps this. But can also give you a crappy ride if you have to go to such a low profile to avoid rubbing. Spend some time on Tirerack's site, you will learn all you need to know. There are also plenty of threads where people say what they are running. Most are extreme and have had to roll the fenders. I was not willing to do this.

[Other_Erik]

To quote a previous poster on this topic: "I searched high and low. On this forum and others. I found anecdotal information for specifc wheels. I used calculators, but they just confuse me. Either I am blind or slow (likely both),:confused: but I cannot find" info on the setup I am looking into running: OEM Audi Speedline 19" Peeler wheels. I know these come in a variety of flavors from various Audi oem models. The set I am currently looking at is off a 2011 S4 with TPMS sensors.Would the peelers off an S4 or S5 be the best to put on RS6?
Not sure how many widths Audi made these in, think 8.5" and 9" are both available & no idea which is a better option for the RS6?
Also not sure which offsets on these wheels would be compatible with the RS6 without spacers? If spacers are necessary what size? Also as other Erik suggested above, think I'd need to adapt the hub from 57.1mm to 66.6mm. If anyone can educate me on this would be very helpful to know before I move forward and buy the wheels want to make sure they fit!! Thanks in advance:addict:

Need part numbers or at the very least the actual wheel dimensions for the peelers you're looking at. Depending on which (S4/S5/etc) 19x8.5 or 19x9, there are different offsets for different models.

I've been using http://www.willtheyfit.com to gauge roughly what is needed.
For me to go from stockers to the peelers I had from a 2011 S5 Prestige, measurements went like so:
Original: 255/40/18 on 18x8 ET35
New: 255/35/19 on 19x8.5 ET32
Difference: -3.2mm means a 5mm spacer is more than enough to clear, and ends up in total pushing the edge of the rim outboard about 1/3 of an inch.

Interestingly enough, going on those same lines for the rear, I'm looking at some 11" wide wheels to run 305's in the rear for a foot of rubber on the road.
Original: 255/40/18 on 18x8 ET35
New: 305/25/20 on 20x11 ET25
Difference: -28.1mm means a 30mm spacer brings me far enough to clear, and ends up in total pushing the edge of the rear rim outboard just a hair over 3 inches. Based on how the car sits now, that means I'll have ~1.75" of wheel sticking out compared to the top of the fender arch, or ~2.5" beyond the middle of the fender arch. That's going to look f'in MEAN!

[ttboost]

....and to add to my post above (and Other_Erik's too), before I sold my RS6, I tried the 20" BBS wheels off my Benz just to see what they looked like and if they fit. Well, well well....they fit, but much like above they stuck our about an inch or so, but looked killer. Front fit fine too. Didn't drive anywhere as I only tried one side (front and back), but it's likely they MIGHT rub a smidge, but maybe not with some fender rolling. The BBS CH-R's are 20x10.5R (305/25-20) and 20x9F (255/30-20). Both front and rear are ET25. I will try to find some pics. These BBS wheels are for sale too. You will need hubcentric spacers for them to fit. Although Audi and Benz have the same bolt pattern (5x112) Audi hub is 57.1 and Benz is 66.56. I obviously have the hubcentric spacers too.14960149611496214963

[nistah]

Need part numbers or at the very least the actual wheel dimensions for the peelers you're looking at. Depending on which (S4/S5/etc) 19x8.5 or 19x9, there are different offsets for different models.

Thanks Erik! I found out that they are 19X8.5 5X112 bolt pattern with 43MM offset. With this info can anyone advise what would need to be done to make these peelers fit the beast properly?Thanks in advance!~

[Other_Erik]

Thanks Erik! I found out that they are 19X8.5 5X112 bolt pattern with 43MM offset. With this info can anyone advise what would need to be done to make these peelers fit the beast properly?Thanks in advance!~

Thanks to the high offset, you would need to add spacers to keep the inner edge of the tire away from your strut.

Based on the wheel dimensions, the inner edge will be ~17.4mm closer to the suspension strut than your original wheels/tires, and the outer edge will be ~4.7mm further inward.

You will need to adapt the hub bore from the 57.1mm hub on the RS6 to the 66.56mm bore on the wheel.

You'll be in need of the following:
4x57.1->66.56mm hub bore adapters, 5x112 bolt pattern
4x20mm 5x112 bolt pattern spacers

They'll need to be in this sandwich order:
Wheel -> Adapter -> Spacer -> Hub

When you're finished with this, your wheels will stick out just about 5/8 of an inch further than the stock wheels (-4.7mm + 20mm = +15.3mm)

Good luck, hope they look as good on the car as painted stockers, I got my fair share of compliments on the meteor black 18's that I used for my winter setup :)

O_E

[Greyyork]

So I've read through every single post and all the information I could find and I'm still slightly confused. I have a set of 18x9 Formula HLT OZ rims ET 35 that I'm going to be putting back on soon. The old tire I was running was Conts 255/40/18. Now I'm going to buy Summer Pilot Super Sport and I'm wondering what size I should go with. It's all confusing to me. Mainly I want to make the sidewalls smaller so I should go with 35 right? Will that fit? Only other question is if I go 265 or even 275 what affect does that have on appearance? Thanks.

Grey

[Other_Erik]

So I've read through every single post and all the information I could find and I'm still slightly confused. I have a set of 18x9 Formula HLT OZ rims ET 35 that I'm going to be putting back on soon. The old tire I was running was Conts 255/40/18. Now I'm going to buy Summer Pilot Super Sport and I'm wondering what size I should go with. It's all confusing to me. Mainly I want to make the sidewalls smaller so I should go with 35 right? Will that fit? Only other question is if I go 265 or even 275 what affect does that have on appearance? Thanks.

Grey

If I were you, I'd stick with stock size. 255/40-18 is the proper size to keep the speedometer and odometer dead-on accurate.

Keeping the speedo/odo accurate on the same diameter rims, you will always have the same size sidewall. If you want a shorter sidewall (warning: also means rougher ride), you have two (possibly three) choices:
1) Up-size the Rim Diameter (19's, 20's, etc...) and match the new tire to the new wheels
2) Use a reluctor setup to change the revolutions per mile appropriately
a) your example, going to 255/35-18 - you are changing the total rolling diameter from 2077.2mm to 1997.1mm - this means you will have more revolutions per mile.
the math: 1609344 mm/mile - stock setup 1609344/2077.2= 774.76 revolutions per mile - new setup 1609344/1997.1=805.84 revs per mile, leaving you ~4% off speedo and odo.
3) Not sure if this one is possible, but if there is a coding option from a Ross-Tech to change recognized revs per mile, you could do that...

Wider tires: The proper fitment for wider tires on an 18" rim follows:
255/40-18 - Stock 10" wide, 2077.2mm circumference - Speedo set +/- 0.00%
285/35-18 - 11.25" wide, 2063.1mm circumference - Speedo error +0.69%
295/35-18 - 11.66" wide, 2085.1mm circumference - Speedo error -0.38%
I definitely wouldn't recommend going any wider on a 9" rim. If you are lucky enough to find 18x10-11 inch wheels,
335/30-18 - 13.2" wide, 2067.8mm circumference - Speedo error +0.46%
345/30-18 - 13.6" wide, 2086.6mm circumference - Speedo error -0.45%


Regardless all the above, 2 points to make:
1) 18x9" ET35 rims brings the inner lip of the tire 15.7mm closer to the strut. Add 15mm spacer, and if you need, hub bore adapter if the rims are not 57.1mm bore, and you're good to go
2) If you want wider tires, I'd recommend only doing so on the rear. The front is already very tight clearance between tires and bits you don't want the tires to scuff.


Whew, this post got long in a hurry

TL;DR - Stick to stock width in the front, they only get 30-40% of the power anyway. Wider is better in the rear, but your tires are going to poke out beyond the fenders. Stay as close to stock circumference as you possibly can.

[ttboost]

While it's certainly easier to have someone else do the math for you, it would be beneficial to learn this info. Tire rack has a ton of info to help educate. http://www.tirerack.com/about/techcenter.jsp Scroll down to "Wheel tech".

I will try to help you this way, with regard to your old tires. 255 is the width of the tire in millimeters. 40 is the sidewall dimension, which is a percentage of the width. (40% of 255 is 102mm, so the tire is 102mm tall from the rim to the tire tread). 18 is obviously the rim diameter, or the inner diameter of the tire. ET (or offset as it is often called) is the distance from the center of the wheel to the face of the mounting surface. ET changes things dramatically, but can also be very forgiving. All else being equal, the smaller this number, the further the wheel sticks out, the bigger the ET, the more it protrudes inward. Obviously, different size tires exaggerate this effect. I think ET dimensions change with different wheels and different wheel manufacturers.
To answer your question, going from a 255/40 to a 255/35 will give you a 13mm smaller sidewall, which you seem to want. The ride will be much firmer, also potentially subjecting your wheels to damage from road conditions, as a thicker sidewall acts as insulation. It will look better, but at what cost? Going to a 265 or 275 will make it a little better as we said above, percentage of a bigger tire is a bigger sidewall. ET problems are fixed with spacers, rolling fenders and different tire sizes accordingly. RS6 factory wheel offset is 30. All wheels have their dimensions cast on the inside including diameter, width and ET. Hope you don't take this the wrong way, just trying to help.

[Greyyork]

This is why all other car forums pale in comparison to RS6.com. The amount of detail in explanations and help is absolutely amazing. Thanks guys, I'm going to be sticking with the 255/40. Only other thing that confuses me is I'm trying to buy the Pilot Super Sports off the local base PX and I know I have rotational tires, but I don't see an option when filling out the forums for tires for a "rotational" tire. Any side thoughts before I drop the 1200 on these bad boys?

[hahnmgh63]

I found the Pilot Super Sports at Costco out the door with tax for only $1100 up here in WA, that includes our 8.8% sales tax so you should be able to find them at Costco in San Antonio for less. You at Randolph or Lackland?
OOPs, after re-reading I guess you may still be in Germany, I forgot.

[Greyyork]

Yep still in Germany, and if you guys didn't know http://www.discountedwheelwarehouse.com $213 a piece. You can thank me later.

[Other_Erik]

This is why all other car forums pale in comparison to RS6.com. The amount of detail in explanations and help is absolutely amazing. Thanks guys, I'm going to be sticking with the 255/40. Only other thing that confuses me is I'm trying to buy the Pilot Super Sports off the local base PX and I know I have rotational tires, but I don't see an option when filling out the forums for tires for a "rotational" tire. Any side thoughts before I drop the 1200 on these bad boys?

I'll take it as a compliment, I know I tend to ramble when I get into the tech side of things...

Did you mean directional rather than rotational? The only time that matters is when you're getting a rotation done. With some cars, you rotate Front/Rear as well as Left/Right. With Directional tires, you ONLY rotate Front/Rear. Even with non-directional tires (PSS as an example), I still recommend only rotating front/rear on any vehicle due to the way the steel supports tend to sag after a few Left/Right rotations. As always, pay attention to how your tires are wearing before you try and diagnose any other problem related to road/suspension noise - You'd be surprised how easy it is to spot feathering on the lip of the sidewall, or heavier wear to the interior of the tire, and from there be able to say EXACTLY what could be wrong with your suspension...

Not sure about your pricing since you're in Ansbach (you lucky bastard you!), but it seems PSS is the go-to standard around here. I can get a set with road hazard from Tirerack shipped (not installed) for $1116.88 But if discountedwheelwarehouse can beat that price, I'm all over it :)

Good luck!

O_E

[nistah]

Thanks to the high offset, you would need to add spacers to keep the inner edge of the tire away from your strut.

Based on the wheel dimensions, the inner edge will be ~17.4mm closer to the suspension strut than your original wheels/tires, and the outer edge will be ~4.7mm further inward.

You will need to adapt the hub bore from the 57.1mm hub on the RS6 to the 66.56mm bore on the wheel.

You'll be in need of the following:
4x57.1->66.56mm hub bore adapters, 5x112 bolt pattern
4x20mm 5x112 bolt pattern spacers

They'll need to be in this sandwich order:
Wheel -> Adapter -> Spacer -> Hub

When you're finished with this, your wheels will stick out just about 5/8 of an inch further than the stock wheels (-4.7mm + 20mm = +15.3mm)

Good luck, hope they look as good on the car as painted stockers, I got my fair share of compliments on the meteor black 18's that I used for my winter setup :)

O_E

Thank you O_E will keep you posted on how everything works out!!!

[2000c43]

I apologize if this has been answered elsewhere, but I have not found the exact answer. I have an RS6 with stock oem 18" wheels and tires and factory ride height. I would like to purchase ECS Tuning spacers and don't know how big of a spacer would work without rubbing on the front. I think that kismetcapitan's RS6 looks great. I know he is running 10mm spacers front and rear, but he has lowering springs and therefore needed to roll the front fender lip and cut the plastic liner to avoid rubbing. If I do not have a lowered ride height and do not want to roll the fenders, what would be the maximum spacer with the stock 18" wheels and tires? I feel like 10mm front and 10mm back would work with a factory ride height and factory wheels and tires, but I am not sure. ECS spacers come in 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, and 15mm increments.

[nistah]

Thanks to the high offset, you would need to add spacers to keep the inner edge of the tire away from your strut.

Based on the wheel dimensions, the inner edge will be ~17.4mm closer to the suspension strut than your original wheels/tires, and the outer edge will be ~4.7mm further inward.

You will need to adapt the hub bore from the 57.1mm hub on the RS6 to the 66.56mm bore on the wheel.

You'll be in need of the following:
4x57.1->66.56mm hub bore adapters, 5x112 bolt pattern
4x20mm 5x112 bolt pattern spacers

They'll need to be in this sandwich order:
Wheel -> Adapter -> Spacer -> Hub

When you're finished with this, your wheels will stick out just about 5/8 of an inch further than the stock wheels (-4.7mm + 20mm = +15.3mm)

Good luck, hope they look as good on the car as painted stockers, I got my fair share of compliments on the meteor black 18's that I used for my winter setup :)

O_E


Erik I pulled the trigger on the set of slicers described above. I understand that I will need 4x57.1->66.56mm hub bore adapters, 5x112 bolt pattern however not clear on the 4x20mm 5x112 bolt pattern spacers they seem to have spacers for both the 57.1 & 66.5 hub bore wheels since I am adapting to 66.56 I suspect I need the first ones listed below

20mm Hubcentric Wheel Spacer Kit Fit Audi A5/S5 2009-2012 Bolt Pattern: 5x112 Center Bore: 66.5 Thread Type... (http://www.amazon.com/Hubcentric-Wheel-Spacer-2009-2012-Pattern/dp/B00DTZAY3Q/ref=sr_1_1?ie=UTF8&qid=1404426634&sr=8-1&keywords=20mm+5x112+bolt+pattern+spacers)
20mm 5x112 Hubcentric Wheel Spacers for Audi A4 A3 A6 VW Jetta Golf GTI (57.1 Bore) (http://www.amazon.com/5x112-Hubcentric-Wheel-Spacers-Jetta/dp/B00ENPCDD0/ref=sr_1_10?ie=UTF8&qid=1404426634&sr=8-10&keywords=20mm+5x112+bolt+pattern+spacers)
However not sure, please confirm so I can idiot proof my plan before ordering. Thanks again for your knowledge and help on this topic!

[Corbett]

If you are using hub rings then you need 57.1 spacers

[bmlee007]

Finally got my delivery from tire rack. OZ Leggera HLT 19x8.5 et 38 (w/10mm spacer for final et28) wrapped with Michelin Pilot SuperSport 255/35/19. IIRC, I had to select the 2010 S6 to find them on the site, then a few emails with Gill to get everything set up. Previous setup was RS4 reps, 18x8 et38 w/20mm spacer, so these are tucked slightly back under the fender.

153381533915340

[G2]

It's a long thread,just throwing out my latest tire dilemma: Input is welcomed.

Despite my initial excitement on the new RE11's (275/30-19), and fantastic traction, if not nearly amazing, another change seems needed. Not thrilled with flat spotting when parked. It's far worse than the S04's. Tried various tire pressures.
-- Thinking of switching back to Michelin.

But what size and load index, if that matters in the real world in terms of ride quality? Intended use is just summer and prefer the 30 series handling and slightly wider contact than 35's offer.

Anyone here with PSS's in 275/30? Really curious how the ride quality, but most importantly it's resistance to flat spotting is. Tire kid at America's Tire said they wouldn't sell this size due to low load index. Not worried....the 96XL rating should be fine, and is what the RE11's are.

But the 35's have a much higher load rating. Wondering if it makes a noticeable difference, or in helping to keep the tire round-- in the Michelin brand? Waiting 2-7 miles for tires (RE11's or S04's) to warm up, round out, smooth out, is driving me batty on the 16 mile daily commute. And it's not good on the suspension....

Considering (19"):
265/35 (easy fit, higher load, reduced contact patch)
275/35 (high load, tight fit, may need to raise front end)
275/30 ("preferred") slightly under OD helps clearance, increases WHP, widest tire.

Michelin seems like a "big" tire based on my AS3's. Bigger than Bridgestone for a given size? May be a factor?

Running OE wheels and Michelin AS3's until the dilemma is sorted. Rides like butter and handles OK for the KW3's.

What to do? Anything else I should consider?

[Other_Erik]

Erik I pulled the trigger on the set of slicers described above. I understand that I will need 4x57.1->66.56mm hub bore adapters, 5x112 bolt pattern however not clear on the 4x20mm 5x112 bolt pattern spacers they seem to have spacers for both the 57.1 & 66.5 hub bore wheels since I am adapting to 66.56 I suspect I need the first ones listed below

20mm Hubcentric Wheel Spacer Kit Fit Audi A5/S5 2009-2012 Bolt Pattern: 5x112 Center Bore: 66.5 Thread Type... (http://www.amazon.com/Hubcentric-Wheel-Spacer-2009-2012-Pattern/dp/B00DTZAY3Q/ref=sr_1_1?ie=UTF8&qid=1404426634&sr=8-1&keywords=20mm+5x112+bolt+pattern+spacers)


20mm 5x112 Hubcentric Wheel Spacers for Audi A4 A3 A6 VW Jetta Golf GTI (57.1 Bore) (http://www.amazon.com/5x112-Hubcentric-Wheel-Spacers-Jetta/dp/B00ENPCDD0/ref=sr_1_10?ie=UTF8&qid=1404426634&sr=8-10&keywords=20mm+5x112+bolt+pattern+spacers)


However not sure, please confirm so I can idiot proof my plan before ordering. Thanks again for your knowledge and help on this topic!

Hopefully I'm not too late to help.

You _can_ use either of those spacers. It's all a question of how you sandwich the stack. I would recommend you go this way:

Hub-->Adapter-->Spacer-->Wheel
In which case you would want the 57.1->66.56mm adapter and the 66.56mm spacer

If you've already ordered everything and picked up the 57.1mm spacer, you'll need to sandwich them like so:

Hub-->Spacer-->Adapter-->Wheel
I only say that I don't recommend this because it means putting your wheel lugs through the wheel and the adapter into the spacer, and I know what a pain in the ass it is to mount wheels by hand without a magic stick...

Erik

[Other_Erik]

It's a long thread,just throwing out my latest tire dilemma: Input is welcomed.
Despite my initial excitement on the new RE11's (275/30-19), and fantastic traction, if not nearly amazing, another change seems needed. Not thrilled with flat spotting when parked. It's far worse than the S04's. Tried various tire pressures.
-- Thinking of switching back to Michelin.
But what size and load index, if that matters in the real world in terms of ride quality? Intended use is just summer and prefer the 30 series handling and slightly wider contact than 35's offer.
Anyone here with PSS's in 275/30? Really curious how the ride quality, but most importantly it's resistance to flat spotting is. Tire kid at America's Tire said they wouldn't sell this size due to low load index. Not worried....the 96XL rating should be fine, and is what the RE11's are.
But the 35's have a much higher load rating. Wondering if it makes a noticeable difference, or in helping to keep the tire round-- in the Michelin brand? Waiting 2-7 miles for tires (RE11's or S04's) to warm up, round out, smooth out, is driving me batty on the 16 mile daily commute. And it's not good on the suspension....
Considering (19"):
265/35 (easy fit, higher load, reduced contact patch)
275/35 (high load, tight fit, may need to raise front end)
275/30 ("preferred") slightly under OD helps clearance, increases WHP, widest tire.
Michelin seems like a "big" tire based on my AS3's. Bigger than Bridgestone for a given size? May be a factor?
Running OE wheels and Michelin AS3's until the dilemma is sorted. Rides like butter and handles OK for the KW3's.
What to do? Anything else I should consider?

No matter which direction you go, make sure your tires have a load index rating of 99 or higher. One of the big reasons you'll get flat spots is due to the load on those tires that aren't rated for it. Another thing to consider is if you curb your wheels (yeah, yeah, I know, we're all expert drivers here, only our wives/valet/etc have ever rashed the wheels), the softer ply of the tires that have a lower rating will be more likely to gash the sidewall at the seat bead, ruining your tire.

I understand that with a higher load rating, the ride is a bit harsher. If that's a major concern, I don't recommend upsizing your wheels. On 19's, your exact (within 0.25%) match tire options are:
255/35/19
295/30/19
Either of which has roughly the same height of sidewall (~3.5") compared to the roughly 4" of sidewall that you'll want on an 18" rim. That half-inch may not sound like much difference, but in ride quality terms, it makes a noticeable difference.

You're well on your way to really "getting" what is important - I see you talking about contact patch. Yes, the more contact you're making with the road, the better. That said, your stock tires make contact at 10" wide by anywhere from 4-6 inches long patches. Going in the median of that, that means ~50in^2 per tire contact. Going with wider tires adds very little to that patch (this isn't some old Honda, where you're going from 145-wide to 225-wide, net gain 50%) - talking about going from a 255-wide to a 275-wide is a net gain of ~8%, and softer ply means you'll make a bit more contact length to the tune of maybe a percentage or two. Call it a 10% gain in dry, straight-line contact. Having talked with folks who've done big builds on their vehicles, stock tires have done them right up to 550whp. They can floor it and get a chirp as the Quattro kicks in and mangles their Torsen diff. If you're making anywhere near stock power, you're probably not going to need that additional contact patch. Where this all changes is if you're trying to get better cornering, wet, or snow traction.

For cornering traction, brother, you are in the wrong vehicle. 4400lb curb weight and a tendency towards body roll are not your friend. Anyway, you'll do more for yourself swapping in the Hotchkis sway bars than any amount of wider tires could do for you. You could also look into spring limiters for a stronger damping at the extremes of suspension travel. I'm not an expert by any means, but I play one on TV...

For wet and/or snow traction, it's all about the tire itself. Wet traction, you want a traction pattern that does 2 things - maximize the contact patch with the road, and minimize the amount of water allowed under the tire (usually, via ducting out existing water along chevron-shaped grooves that give the water a path of least resistance pointing outward). Snow traction is a whole 'nother beast, and my only recommendation here is Blizzaks for everyday, and chains/studs if you're talking deep snow with possibility of ice. The Blizzaks will wear faster than your typical passenger tire (24k mile rating compared to 40k+), but on an AWD system like we have, it's like a mountain goat compared to rolling around on bowling balls in very slick conditions.

I've gone and gotten all wordy again. Let me know if this helped/hurt/didn't make a difference. If you've got any questions, I'm here more than I probably should be, but it never hurts to PM me and say "Hey, I posted a question in the tire/wheel offset thread, could you take a look?" :)

Thanks
O_E

[nistah]

Hopefully I'm not too late to help.

You _can_ use either of those spacers. It's all a question of how you sandwich the stack. I would recommend you go this way:

Hub-->Adapter-->Spacer-->Wheel
In which case you would want the 57.1->66.56mm adapter and the 66.56mm spacer

If you've already ordered everything and picked up the 57.1mm spacer, you'll need to sandwich them like so:

Hub-->Spacer-->Adapter-->Wheel
I only say that I don't recommend this because it means putting your wheel lugs through the wheel and the adapter into the spacer, and I know what a pain in the ass it is to mount wheels by hand without a magic stick...

Erik

THanks! Yeah I followed Corbett's advice and got the 57.1 Hub Centric Wheel Spacers W/ 14x1.5 Lug Bolts (http://www.ebay.com/itm/281286824574?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT) to match up to the 57.1->66.56mm adapter. I am having a tire shop handle the mounting so hopefully it will not make much of a difference.

[nistah]

On 19's, your exact (within 0.25%) match tire options are:
255/35/19
295/30/19

OK so I am looking at 255/35/19 which I suspect was the OE tire size. Do the 295's provide any tangible benefits over the 255's? Because the 295's seem to cost way more than the 255's…. Also on tire choice… I know folks swear by the Michelin PSS line. So I am looking into those. Any other recommendations will be helpful. Cheers :RS5fan:

[Other_Erik]

OK so I am looking at 255/35/19 which I suspect was the OE tire size. Do the 295's provide any tangible benefits over the 255's? Because the 295's seem to cost way more than the 255's…. Also on tire choice… I know folks swear by the Michelin PSS line. So I am looking into those. Any other recommendations will be helpful. Cheers :RS5fan:

Can't recommend a brand since I've only had the one set of summer tires so far. I can say I'm ordering PSS in 255/40-18 for my RS6 in Michelin PSS. Best bang for the buck from what I've heard.

As far as 255/35/19 vs 295/30/19 - the only tangible benefit is going to be if you're making ridiculous high HP/TQ numbers, more meat on the road (~15% more contact patch) - the folks who've done 550+WHP/High 500's lb/ft TQ have attested that the standard size 255 fronts are no problem, and some have gone to 275's in the rear (messing with revs/mile calculations, but that's their problem, not mine).

If you're making anywhere near stock power levels, no tangible benefit.

TL;DR: 255/35/19 PSS's will be your friend. Don't bother looking anywhere else. Oh, and make sure you get the XL (eXtra Load) rating - a little harsher ride, but you won't get flat-spotting as easily.

[Avus-RS6]

275 30 19 Nitto NT-05 tires on 19 x 9.5 et 26 fits great, looks stellar. HRE M40 rims. Haven't cornered hard yet, bolted them on last night then took the wife out to dinner (no hard driving). Car is fairly low, on PSS9's, but not dumped. Will report on any rubbing once I put it through the paces. Worse case, I'll have to roll the fronts a hair which I'm not too worried about, she's not a garage queen.

[bmlee007]

OK so I am looking at 255/35/19 which I suspect was the OE tire size. Do the 295's provide any tangible benefits over the 255's? Because the 295's seem to cost way more than the 255's…. Also on tire choice… I know folks swear by the Michelin PSS line. So I am looking into those. Any other recommendations will be helpful. Cheers :RS5fan:

I'm a recent convert to PSS from Continental. I've driven about 500 miles since putting them on two weeks ago. Contis were 255/40/18 and PSS are 255/35/19, ride quality is about the same even with the shorter sidewall. Less noise on most roads around my place, asphalt or concrete. It sat for 4 days at the airport and had no issues with flat-spotting in 80+ degree weather. My last 3 sets of tires on various cars were Contis, but I'm already feeling like the switch to Michelin was worth the extra $20 on each corner.

[nistah]

I got the 19" peelers installed on my beast yesterday. Like the way they look & how they fill the wheel well area. Special thanks to Other Erik without whom this would not have been possible.I do have a follow up question: the spacer kit I bought came with 14x1.5 Lug Bolts installer suggested that these lugs were a tad too short, said I was only gripping 6 threads and that I needed 8 threads grip. Does anyone know where I can find the next longer sized lugs bolts? are they 3.5 inch lugs? also is there any danger in running these shorter lugs? Installer said no, not for the time being but to replace within a month. Looking for a second opinion. Cheers!
http://i1244.photobucket.com/albums/gg577/Erik_Leve/20140716_090236_resized_zpsb2ffdb51.jpg
http://i1244.photobucket.com/albums/gg577/Erik_Leve/20140716_085922_resized_zps21166e8f.jpg

[Dmb408]

I am pretty sure ECS tuning has varying thread length bolts for our car since they sell spacer kits...

[bmlee007]

I've read somewhere that 7-8 threads is optimal. Our lug bolts are 14x1.5, and I believe the original length was 27mm for stock wheels. The short answer would be to add the thickness of the spacer to come up with the correct length.

However:

The best course of action would be to remove one bolt and measure the thread length, and add 3mm to that. Since the pitch is 1.5mm, the two threads you need would add up to 3mm. I say this is the best way to determine what you need, because the wheel hub thickness may be more than what you had originally.

On my recent purchase, I bought OZ wheels from Tire Rack, and spacers and bolts from ECS. I used my original thinking, and ordered 37mm bolts based on original length of 27mm plus a 10mm spacer. When I went to bolt them up, I was only getting about 1.5 threads. When I checked the wheels, there was more material at the mounting hub than my original wheels, so I had to order new bolts. Your peelers may be the same thickness as your original wheels, but measuring is the quickest and best way to get what you need.

As a side note, I have a brand new set of black ECS M14x1.5 37mm lug bolts I don't need, if anyone is interested.

[ttboost]

I bought spacers and bolts from Tire Rack.

[nistah]

Thanks found out the place I bought the spacers will exchange the lugs @ no cost. I notice that in the beast with 19" wheels speed bumps need to be taken more slowly!

[Avus-RS6]

Follow Up:

275 30 19 Nitto NT-05 tires on 19 x 9.5 et 26 looks great on my lowered RS6 with PSS9's. Fronts rub badly on cornering, finally got to take a sporty jaunt with a willing passenger in the right seat. I'll be getting the fenders rolled to clear. I am somewhat disappointed I have to do this but the car really needs the wide rubber and looks great on the HRE's!

[G2]

Nistah, I got extra bolts from Bahnbrenner and spacers. I use bolts that go all the way thru the drive flange. There's plenty of room on the backside.

One of the reasons I do this is because import/china fasteners typically are rounded and the first 1-2 threads don't properly engage. Where as the OE German bolts do.

Common sense, but when I worked in Engineering that consideration (thread engagement) was something we had to closely follow. I want to source OE quality grade wheel bolts for the summer wheels, but have not so far. Probably should before I do a track day at PIR this year, where 130+MPH is realistic on the big straight (right before threashold braking is needed; talk about wheel torque!).

Err on the side of safety and run the bolts long on this car, IMHO.

[G2]

Follow Up:

275 30 19 Nitto NT-05 tires on 19 x 9.5 et 26 looks great on my lowered RS6 with PSS9's. Fronts rub badly on cornering, finally got to take a sporty jaunt with a willing passenger in the right seat. I'll be getting the fenders rolled to clear. I am somewhat disappointed I have to do this but the car really needs the wide rubber and looks great on the HRE's!


What's the load index on those tires?

There's screws under the front lip (12 o'clock) that can be removed. Curious how the fender rolling works out. I can't see how it can be rolled anymore w/o damaging paint.....please update if you have that done.

[G2]

No matter which direction you go, make sure your tires have a load index rating of 99 or higher. One of the big reasons you'll get flat spots is due to the load on those tires that aren't rated for it. Another thing to consider is if you curb your wheels (yeah, yeah, I know, we're all expert drivers here, only our wives/valet/etc have ever rashed the wheels), the softer ply of the tires that have a lower rating will be more likely to gash the sidewall at the seat bead, ruining your tire.

I understand that with a higher load rating, the ride is a bit harsher. If that's a major concern, I don't recommend upsizing your wheels. On 19's, your exact (within 0.25%) match tire options are:
255/35/19
295/30/19
Either of which has roughly the same height of sidewall (~3.5") compared to the roughly 4" of sidewall that you'll want on an 18" rim. That half-inch may not sound like much difference, but in ride quality terms, it makes a noticeable difference.

You're well on your way to really "getting" what is important - I see you talking about contact patch. Yes, the more contact you're making with the road, the better. That said, your stock tires make contact at 10" wide by anywhere from 4-6 inches long patches. Going in the median of that, that means ~50in^2 per tire contact. Going with wider tires adds very little to that patch (this isn't some old Honda, where you're going from 145-wide to 225-wide, net gain 50%) - talking about going from a 255-wide to a 275-wide is a net gain of ~8%, and softer ply means you'll make a bit more contact length to the tune of maybe a percentage or two. Call it a 10% gain in dry, straight-line contact. Having talked with folks who've done big builds on their vehicles, stock tires have done them right up to 550whp. They can floor it and get a chirp as the Quattro kicks in and mangles their Torsen diff. If you're making anywhere near stock power, you're probably not going to need that additional contact patch. Where this all changes is if you're trying to get better cornering, wet, or snow traction.

For cornering traction, brother, you are in the wrong vehicle. 4400lb curb weight and a tendency towards body roll are not your friend. Anyway, you'll do more for yourself swapping in the Hotchkis sway bars than any amount of wider tires could do for you. You could also look into spring limiters for a stronger damping at the extremes of suspension travel. I'm not an expert by any means, but I play one on TV...

For wet and/or snow traction, it's all about the tire itself. Wet traction, you want a traction pattern that does 2 things - maximize the contact patch with the road, and minimize the amount of water allowed under the tire (usually, via ducting out existing water along chevron-shaped grooves that give the water a path of least resistance pointing outward). Snow traction is a whole 'nother beast, and my only recommendation here is Blizzaks for everyday, and chains/studs if you're talking deep snow with possibility of ice. The Blizzaks will wear faster than your typical passenger tire (24k mile rating compared to 40k+), but on an AWD system like we have, it's like a mountain goat compared to rolling around on bowling balls in very slick conditions.

I've gone and gotten all wordy again. Let me know if this helped/hurt/didn't make a difference. If you've got any questions, I'm here more than I probably should be, but it never hurts to PM me and say "Hey, I posted a question in the tire/wheel offset thread, could you take a look?" :)

Thanks
O_E

O_E,

Thanks for all the input. I can see it's also written as general info and to help others. Always good.

The flat spotting issue seems far worse with low profile tires, irrespective of the Load Index. You hadn't asked, but the S04's were a 100 index and sized 275/35-19. Those tires were annoying but not terrible for flat spotting. The semi-exception to this rule was an OE set of B-stone RE760's i was forced to buy hours after my car purchase. They were poor in my opinion, but once warmed up rode very nice and quiet, with decent handling. But with a major flaw..

The contact patch issue is also a safety factor for me. Not just going fast, spinning wheels and or cornering Those RE760's didn't stop anywhere near what the brakes are capable of. My Ridgeline with EBC brakes and A/T tires stopped better. Even the wife noticed the difference. But the same sized tire in a Michelin stop better due to the rubber compound.

However, in terms of contact patch width (not area), it's 8" as it sits, with 9" a max width (extreme braking for example). The RE11 275/30's are 9.25" and 10" respectively.

Naturally we are aware the RS6 is heavy (mine weighs 4260lbs), but Dude, these cars can corner, pretty darn well . I bought those RE11's because traction was the missing element. The other points hold water to help, but have already been done. (see my car specs in sig). Ride quality is commesurate to handling for me. Part of the root issue is my shocks need further adjusting. Increasing the compression damping helped reduce the tire flat spot kickback.

With that said, it won't ever handle or corner like my 2100 lb street/track car, but the RS6 is a bit faster in straight line (despite having double or more the power). I hope, and think that anyone buying a luxo GT car realizes it's a compromise machine. I knew perfectly well the RS6 is a street and highway "Brawler". Able to take down, as it were, formidable opponents. But also easy to drive.

Tires just seem to be the weak link for this car. I'm happy with AS3, despite the lower load index (96, Y speed). Talked with my tire guy for some time on the pro's and con's.

A new set of 275/30 PSS's (96Y) are coming next week (295's won't fit; not going staggered). I don't expect the same traction as the RE11's, but overall hoping it's a better compromise, but better steering feel. Eventually a set of track day wheels/tires will find a home on the Beast (and RE11's might be fine for that). But the other Audi will get a set of AS3's this fall, probably the best all-season and light snow/winter tire I've used. See if the PSS's can handle some track time, w/o chunking. Maybe they will be worn down enough not too by then :incar:

Like yourself, I should be doing other things. But thanks again for wrangling some of these issues best as you could.

[nistah]

http://www.rs6.com/showthread.php/24403-definitive-tire-wheel-and-offset-thread/images/misc/quote_icon.png Originally Posted by nistah http://www.rs6.com/showthread.php/24403-definitive-tire-wheel-and-offset-thread/images/buttons/viewpost-right.png (http://www.rs6.com/showthread.php/24403-definitive-tire-wheel-and-offset-thread/showthread.php?p=265818#post265818)
Erik I pulled the trigger on the set of slicers described above. I understand that I will need 4x57.1->66.56mm hub bore adapters, 5x112 bolt pattern however not clear on the 4x20mm 5x112 bolt pattern spacers they seem to have spacers for both the 57.1 & 66.5 hub bore wheels since I am adapting to 66.56 I suspect I need the first ones listed below

20mm Hubcentric Wheel Spacer Kit Fit Audi A5/S5 2009-2012 Bolt Pattern: 5x112 Center Bore: 66.5 Thread Type... (http://www.amazon.com/Hubcentric-Wheel-Spacer-2009-2012-Pattern/dp/B00DTZAY3Q/ref=sr_1_1?ie=UTF8&qid=1404426634&sr=8-1&keywords=20mm+5x112+bolt+pattern+spacers)


20mm 5x112 Hubcentric Wheel Spacers for Audi A4 A3 A6 VW Jetta Golf GTI (57.1 Bore) (http://www.amazon.com/5x112-Hubcentric-Wheel-Spacers-Jetta/dp/B00ENPCDD0/ref=sr_1_10?ie=UTF8&qid=1404426634&sr=8-10&keywords=20mm+5x112+bolt+pattern+spacers)


However not sure, please confirm so I can idiot proof my plan before ordering. Thanks again for your knowledge and help on this topic!


Hopefully I'm not too late to help.

You _can_ use either of those spacers. It's all a question of how you sandwich the stack. I would recommend you go this way:

Hub-->Adapter-->Spacer-->Wheel
In which case you would want the 57.1->66.56mm adapter and the 66.56mm spacer

If you've already ordered everything and picked up the 57.1mm spacer, you'll need to sandwich them like so:

Hub-->Spacer-->Adapter-->Wheel
I only say that I don't recommend this because it means putting your wheel lugs through the wheel and the adapter into the spacer, and I know what a pain in the ass it is to mount wheels by hand without a magic stick...

Erik

Since installing the 19X8.5 43MM offset peeler wheels from a 2012 S4 I sometimes get an annoying squeaking noise when going over bumps.

I used 57.1->66.56mm hub bore adapters and 4 Pc Audi 5x112 20 MM Thick 57.1 Hub Centric Wheel Spacers (http://www.ebay.com/itm/281286824574?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT) to fit the wheels. Thought the squeaks may have been from increased load however mechanic took a look and suggested spacers were too large and thus rubbing. Anyone know what size spacer I should try next?? If I was to order the 20 MM 66.56 hub spacer could that eliminate the squeaking problem or would I need another size.

[Other_Erik]

http://www.rs6.com/showthread.php/24403-definitive-tire-wheel-and-offset-thread/images/misc/quote_icon.png Originally Posted by nistah http://www.rs6.com/showthread.php/24403-definitive-tire-wheel-and-offset-thread/images/buttons/viewpost-right.png (http://www.rs6.com/showthread.php/24403-definitive-tire-wheel-and-offset-thread/showthread.php?p=265818#post265818)
Erik I pulled the trigger on the set of slicers described above. I understand that I will need 4x57.1->66.56mm hub bore adapters, 5x112 bolt pattern however not clear on the 4x20mm 5x112 bolt pattern spacers they seem to have spacers for both the 57.1 & 66.5 hub bore wheels since I am adapting to 66.56 I suspect I need the first ones listed below

20mm Hubcentric Wheel Spacer Kit Fit Audi A5/S5 2009-2012 Bolt Pattern: 5x112 Center Bore: 66.5 Thread Type... (http://www.amazon.com/Hubcentric-Wheel-Spacer-2009-2012-Pattern/dp/B00DTZAY3Q/ref=sr_1_1?ie=UTF8&qid=1404426634&sr=8-1&keywords=20mm+5x112+bolt+pattern+spacers)


20mm 5x112 Hubcentric Wheel Spacers for Audi A4 A3 A6 VW Jetta Golf GTI (57.1 Bore) (http://www.amazon.com/5x112-Hubcentric-Wheel-Spacers-Jetta/dp/B00ENPCDD0/ref=sr_1_10?ie=UTF8&qid=1404426634&sr=8-10&keywords=20mm+5x112+bolt+pattern+spacers)


However not sure, please confirm so I can idiot proof my plan before ordering. Thanks again for your knowledge and help on this topic!



Since installing the 19X8.5 43MM offset peeler wheels from a 2012 S4 I sometimes get an annoying squeaking noise when going over bumps.

I used 57.1->66.56mm hub bore adapters and 4 Pc Audi 5x112 20 MM Thick 57.1 Hub Centric Wheel Spacers (http://www.ebay.com/itm/281286824574?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT) to fit the wheels. Thought the squeaks may have been from increased load however mechanic took a look and suggested spacers were too large and thus rubbing. Anyone know what size spacer I should try next?? If I was to order the 20 MM 66.56 hub spacer could that eliminate the squeaking problem or would I need another size.

Did you use any lubricant on the metal-metal contact surface of the spacer? Recommend brake anti-squeak compound, shouldn't need too very much of it. Sorry, have been doing my own wrenchwork so long it never even occurred to me to suggest that. Should also help keep the rust buildup at bay (for now)

O_E

[repda503]

What's the load index on those tires?

There's screws under the front lip (12 o'clock) that can be removed. Curious how the fender rolling works out. I can't see how it can be rolled anymore w/o damaging paint.....please update if you have that done.

I've had my front fenders rolled and no issues with paint cracking. You just have to make sure you heat up the fender/paint with a heat gun before rolling. I also removed some of the fender liner underneath at 12 o'clock. Had no rubbing with 19x9.5 et25 275/30/19 PSS's. However I switched wheels and now have an et23 and rub slightly on sharp corners.

[G2]

Clever process. Didn't think it was practical to roll them more.

Switched from RE11's to PSS, same size. The PSS have a smaller OD (1/4" or so) and are a few MM narrower. Now have 3-4mm between tire and upright. Was about 2mm with RE11's. Good thing the wheel bearings aren't worn (replaced) anymore.

[2000c43]

I apologize if this has been answered elsewhere, but I have not found the exact answer. I have an RS6 with stock oem 18" wheels and tires and factory ride height. I would like to purchase ECS Tuning spacers and don't know how big of a spacer would work without rubbing on the front. I think that kismetcapitan's RS6 looks great. I know he is running 10mm spacers front and rear, but he has lowering springs and therefore needed to roll the front fender lip and cut the plastic liner to avoid rubbing. If I do not have a lowered ride height and do not want to roll the fenders, what would be the maximum spacer with the stock 18" wheels and tires? I feel like 10mm front and 10mm back would work with a factory ride height and factory wheels and tires, but I am not sure. ECS spacers come in 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, and 15mm increments.

I installed 5mm spacers front and rear with 14x1.5x33mm ball seat wheel bolts from ECS Tuning. My car has factory 18" wheels with a recent Koni Sport "DIY" shock replacement. It is not a very agressive spacer setup but I didn't want to have to roll fenders or have any rubbing. So far so good and I think the look is much improved even with a relatively "mild" spacer.

[lswing]

I installed 5mm spacers front and rear with 14x1.5x33mm ball seat wheel bolts from ECS Tuning. My car has factory 18" wheels with a recent Koni Sport "DIY" shock replacement. It is not a very agressive spacer setup but I didn't want to have to roll fenders or have any rubbing. So far so good and I think the look is much improved even with a relatively "mild" spacer.

Nice! Think I'll do that when I put the stock ones on for winter. My summer wheels, while measuring stock, have a 5mm offset, really a nice fit. Why the different wheel bolts, they grab a few more threads?

[2000c43]

Thanks lswing! The bolts are longer than stock to accommodate the spacer and have enough threads to hold the wheel safely. ECS matches the spacers with the correct size bolts in their kits.

[2000c43]

Quick update. I purchased 10mm ECS spacers with 14x1.5x40mm Ball Seat Wheel Bolts for a more aggressive look. The added benefit of the 10mm spacer is that it is hubcentric which helps eliminate any chance of vibration. I love the look even more with the 10mm spacer. My car has stock wheels and tires and the DIY Koni Suspension Modification. There is the smallest of rubbing on the inner fender at full steering lock. I can't even hear it in the car and doesn't seem to be a problem or bother me. Overall super happy and very pleased with ECS.

http://www.ecstuning.com/Audi-RS6--4.2T/Wheels/Spacers/ES2649762/

[vas160s]

Would these fit? Says for audi RS6 but then disclosures in red say not for 4.2 V8...wtf

http://m.ebay.com/itm/301294347753?cmd=VIDESC&gxo=true

[lswing]

Would these fit? Says for audi RS6 but then disclosures in red say not for 4.2 V8...wtf

http://m.ebay.com/itm/301294347753?cmd=VIDESC&gxo=true

Odds are those will bend or crack under the weight, please for your sake don't put such cheap wheels on this car. I went with Hartmann Reps, although some mixed reviews, but have been solid. Around $1,000 for a set, and that's about as low quality as I would go.

[Other_Erik]

Would these fit? Says for audi RS6 but then disclosures in red say not for 4.2 V8...wtf

http://m.ebay.com/itm/301294347753?cmd=VIDESC&gxo=true

18x8 with 45 offset is going to rub those calipers something fierce. Would need major spacers (think 25mm+), and it's a narrow rim to begin with, so your tires would bulge out pretty far beyond the barrel. Highly not-recommended!

[vas160s]

Yeah I knew there was something fishy here...thanks

[s8prtotype]

Bumping this, just wanted to make sure before I order them...

19x9.5 ET35... I'm probably just going to use a 275-30-19 Falken XL tire (found a good deal on them) to get things started.

I was trying to determine what size spacers I will need from this thread... I'm thinking just 5mm (although I wish they made 6mm or 7mm) Thoughts?

Car is lowered pretty good right now, might have to de-nub?? :)

[Korben007]

5mm is perfect with that size tire

[Turbowned]

Quick update. I purchased 10mm ECS spacers with 14x1.5x40mm Ball Seat Wheel Bolts for a more aggressive look. The added benefit of the 10mm spacer is that it is hubcentric which helps eliminate any chance of vibration. I love the look even more with the 10mm spacer. My car has stock wheels and tires and the DIY Koni Suspension Modification. There is the smallest of rubbing on the inner fender at full steering lock. I can't even hear it in the car and doesn't seem to be a problem or bother me. Overall super happy and very pleased with ECS.

http://www.ecstuning.com/Audi-RS6--4.2T/Wheels/Spacers/ES2649762/

This looks great! Screw getting new wheels for a while; I'm just gonna go with spacers. Thanks for sharing!

[s8prtotype]

Hi, Me again... Ok, Sorry but I'm still shopping for something I think i'll like with this damn widebody car... :)

20x10 ET30..... WILL IT BLEND! ahaha (Gulp* tire size?)

[Turbowned]

Hi, Me again... Ok, Sorry but I'm still shopping for something I think i'll like with this damn widebody car... :)

20x10 ET30..... WILL IT BLEND! ahaha (Gulp* tire size?)

Eww, stick with 19" please thanks bye

[s8prtotype]

Aww come on now it won't be anything ugly I promise!

Although I do hate stretched tires and I like at least a 35 sidewall, as I like the "meaty" look, trying to have my cake and eat it too I guess.

Can anyone confirm a 275-35-19 will work on a 9.5 ET30 ? I could possibly raise the car a bit.

[lswing]

Hi, Me again... Ok, Sorry but I'm still shopping for something I think i'll like with this damn widebody car... :)

20x10 ET30..... WILL IT BLEND! ahaha (Gulp* tire size?)

20's will be a rough rough ride man...and lacking on acceleration and handling. 19's are a big step up already. I know it gets treated as a show car sometimes, but you would be much happier driving with 19's max. Best of luck!

[s8prtotype]

My last car was an XJR on OEM BBS 20's with 30 series tires... wasn't really too bad and that car is heavy also?

Few cars in this thread are on 20's and they look pretty good even with a small drop.

[s8prtotype]

Just a FYI there is some good deals in that size!

http://www.audiworld.com/forums/parts-sale-201/a5-s5-dpe-custom-wheels-2860440/

I think they would look pretty good if they could work....

[Turbowned]

I have yet to see a C5 on 20" wheels that I liked, but beauty is in the eye of the beholder. In my mind, the A6 came stock with 15-16" wheels, so OEM RS6 at 18" is already pretty decent; 19" makes it 3" bigger than a standard A6. 20" to me is Hot Wheels car status.

[Dmb408]

Alright wheel/tire gurus I need your help. How about an 18x9 5x112 (those all good so far...) offset 38? And they are 66.1 not 57.1. So I would need custom adapters and spacers of what size, or just hub rings? Thanks!

[Other_Erik]

Alright wheel/tire gurus I need your help. How about an 18x9 5x112 (those all good so far...) offset 38? And they are 66.1 not 57.1. So I would need custom adapters and spacers of what size, or just hub rings? Thanks!

1) Yes, you'll need the hub bore adapter.
2) Grab 5mm spacers (Actual difference is 3.4mm but kicking the wheels out an extra 1/16" can't hurt one bit)
3) Stack them Hub->Spacer->Adapter->Wheel
4) Enjoy a frosty bev'rage AFTER driving them around.

O_E

[Dmb408]

Thanks Erik...

[G2]

Maybe these?

https://www.facebook.com/photo.php?fbid=10203901311715921&set=gm.373816642823315&type=1&theater

[TMAC]

Good info here as always. My goal is to go with a 19x10 wheel if possible, 19x9.5 worst case. I would shoot for the 275/30 or 35 size tire. Now I just have to find the right wheels...........

[G2]

Good info here as always. My goal is to go with a 19x10 wheel if possible, 19x9.5 worst case. I would shoot for the 275/30 or 35 size tire. Now I just have to find the right wheels...........

There's one set of each wheel size and new 275/30's here. General tech forum, but we're also looking for new members to grow with. Feel free to post what you like or are searching for. Always coming across good deals and closeouts.

https://www.facebook.com/groups/PerformanceTireWheelReview/


If you're looking for exotic forged wheels, at better prices, that is in the works as we speak.

[TMAC]

There's one set of each wheel size and new 275/30's here. General tech forum, but we're also looking for new members to grow with. Feel free to post what you like or are searching for. Always coming across good deals and closeouts.

https://www.facebook.com/groups/PerformanceTireWheelReview/


If you're looking for exotic forged wheels, at better prices, that is in the works as we speak.

Very good to know. The RS6 is a hard car to buy wheels for in my opinion. I'm not sure exactly why but most wheels don't look quite right on it.

[Dmb408]

This may have been said elsewhere but on page 2 of this thread someone says 30 lbs. They are not 30 lbs. They are 31.8 lbs. I went up to the attic grabbed one of the two extra wheels I have (OE, with factory paint still left on it) and put it on the scale which is a scale for many reasons I trust down to the tenth of a pound. Picture proof. Still on my search for light forged 18s with factory center bore...tough search.
16133

[Dmb408]

I guess I have the balance weights on there.

[mrdave]

Alright wheel/tire gurus I need your help. How about an 18x9 5x112 (those all good so far...) offset 38? And they are 66.1 not 57.1. So I would need custom adapters and spacers of what size, or just hub rings? Thanks!

This is what you want after you figure out how much spacer you need: https://www.motorsport-tech.com/wheel_spacers.html

[Dmb408]

1) Yes, you'll need the hub bore adapter.
2) Grab 5mm spacers (Actual difference is 3.4mm but kicking the wheels out an extra 1/16" can't hurt one bit)
3) Stack them Hub->Spacer->Adapter->Wheel
4) Enjoy a frosty bev'rage AFTER driving them around.

O_E

Could I run factory tires with this size (the extra half inch wheel)?

[Other_Erik]

Could I run factory tires with this size (the extra half inch wheel)?

Shouldn't be a problem, the section width on a 245 tire is 9 inches so it will be nice and flat.

O_E

[G2]

Shouldn't be a problem, the section width on a 245 tire is 9 inches so it will be nice and flat.

O_E

OE tires are 255/40's, O_E.

(Even the C5-A6 4.2 uses 255's)

Just for fun:

<thead>
Size (http://www.tirerackwholesale.com/tires/tiretech/techpage.jsp?techid=46)
Service Description (http://www.tirerackwholesale.com/tires/tiretech/techpage.jsp?techid=35)
Load Range (http://www.tirerackwholesale.com/tires/tiretech/techpage.jsp?techid=35)
UTQG (http://www.tirerackwholesale.com/tires/tiretech/general/utqg_pop.html)
Max
Load (http://www.tirerackwholesale.com/tires/tiretech/techpage.jsp?techid=195)
Max.
Inflation
Press. (http://www.tirerackwholesale.com/tires/tiretech/techpage.jsp?techid=196)
Tread
Depth (http://www.tirerackwholesale.com/tires/tiretech/techpage.jsp?techid=197)
Tire
Weight
Rim
Width
Range (http://www.tirerackwholesale.com/tires/tiretech/techpage.jsp?techid=198)
Meas.
Rim
Width (http://www.tirerackwholesale.com/tires/tiretech/techpage.jsp?techid=199)
Sect.
Width (http://www.tirerackwholesale.com/tires/tiretech/techpage.jsp?techid=200)
Tread
Width (http://www.tirerackwholesale.com/tires/tiretech/techpage.jsp?techid=201)
Overall
Diam. (http://www.tirerackwholesale.com/tires/tiretech/techpage.jsp?techid=202)
Revs
Per
Mile (http://www.tirerackwholesale.com/tires/tiretech/techpage.jsp?techid=203)
Country
of Origin* (http://www.tirerackwholesale.com/tires/tiretech/techpage.jsp?techid=204)

</thead> <tbody>
245/40R18
93W (http://www.tirerackwholesale.com/tires/tires.jsp?tireMake=Sumitomo&tireModel=HTR+A%2FS+P01+%28W-Speed+Rated%29&partnum=44WR8HTRAS&vehicleSearch=false#) SL (http://www.tirerackwholesale.com/tires/tires.jsp?tireMake=Sumitomo&tireModel=HTR+A%2FS+P01+%28W-Speed+Rated%29&partnum=44WR8HTRAS&vehicleSearch=false#)
360 AA A (http://www.tirerackwholesale.com/tires/tires.jsp?tireMake=Sumitomo&tireModel=HTR+A%2FS+P01+%28W-Speed+Rated%29&partnum=44WR8HTRAS&vehicleSearch=false#)
1433 lbs.

51 psi

10/32"

25lbs.
8-9.5"

8.5"

9.7"

8.7"

25.8"

805

</tbody>

[G2]

Always new the OE stockers were, well, Pretty Looking Porkers. :eek:

My flow form forged 19's are noticeably lighter when switching wheels out.

[G2]

Very good to know. The RS6 is a hard car to buy wheels for in my opinion. I'm not sure exactly why but most wheels don't look quite right on it.

I had gone thru the near agonizing process of finding wheels that I both liked and would fit the car-- and the budget. Nearly all wheels look better when the car is lowered. Vice versa too. It's always a gamble. Practice makes perfect-- one is likely to buy more than one set of wheels over the years.

Been connecting with iForged and Forgestar this week. Really nice wheels that have the quality but not the extreme pricing. Forgestars have caught my eye....

http://www.forgestar.com/v2/wheelsf14.php (the fancier version)

I should be able to provide some very nice deals to get the ball rolling. Still some great tires available on closeout that would wrap a 19" wheel very nicely (see FB forum).

[Dmb408]

Wait Gary, so I knew you were somehow in the auto biz but, are you a dealer for certain wheels? If so PM me your info.

[G2]

Wait Gary, so I knew you were somehow in the auto biz but, are you a dealer for certain wheels? If so PM me your info.

Yes, for the one's mentioned so far. Working on other brands also. What are you looking for?

PM'd.

[Other_Erik]

OE tires are 255/40's, O_E.

(Even the C5-A6 4.2 uses 255's)


Thanks, was thinking tread width not section width, and tires from a different vehicle. I guess we can tell who got an early start on St. Patrick's Day!

O_E

[ScottW]

Here's my RS6 with 20" x 9" Sportec Mono 10 (forged) wheels. ET35
I'm running 275/30/20 tires, and due to the more squared shoulder of this Toyo T1S, I've had to run a 5mm spacer to bring the offset to the proper ET30. It was rubbing on the nub of the control arm.

I'm going to play around with some spacers that I ordered and see if I can't find that fine line between getting them out to the edge, but not rubbing or having to roll the fenders.

1618716188

[Other_Erik]

Here's my RS6 with 20" x 9" Sportec Mono 10 (forged) wheels. ET35
I'm running 275/30/20 tires, and due to the more squared shoulder of this Toyo T1S, I've had to run a 5mm spacer to bring the offset to the proper ET30. It was rubbing on the nub of the control arm.

I'm going to play around with some spacers that I ordered and see if I can't find that fine line between getting them out to the edge, but not rubbing or having to roll the fenders.

1618716188

Purrrrrdy! How's the ride on 30 series / 20" rims? I've been debating looking at 255/35/19 setup to get a bit more clearance around the caliper, but anything that lowers the total weight is crazy expensive (more than I'm spending on a commuter vehicle for the wife), while lighter weight 20's are coming in cheaper...

O_E

[kruat]

Yes, for the one's mentioned so far. Working on other brands also. What are you looking for?

PM'd.

I don't use facebook, what brands do you sell?

[ScottW]

Purrrrrdy! How's the ride on 30 series / 20" rims? I've been debating looking at 255/35/19 setup to get a bit more clearance around the caliper, but anything that lowers the total weight is crazy expensive (more than I'm spending on a commuter vehicle for the wife), while lighter weight 20's are coming in cheaper...

O_E

The tires that I bought with the wheels were 245/30/20. The ride was quite rough. They were Vredestein Ultrac Sessanta. they had a very low sidewall, and quite a rounded shoulder. Again, not a good ride, but I was going to tough it out. Fortunately, I hit a pothole :doh: and was forced to replace the tires. At 275/30, there's quite a bit more sidewall, and as such, the ride is great. The squared shoulder of the T1S should offer significantly more rim protection as well.

[G2]

I don't use facebook, what brands do you sell?

The page should be visible to anyone (now). https://www.facebook.com/groups/PerformanceTireWheelReview/

The list is long and wide....most anything-- including anything from TireRack. Can dropship from them on bigger orders to also save shipping costs. Some high end wheel companies require a Buy In to setup a wholesale account. I can do this for people who want a specific wheel. Either way will save some on overall costs. Maybe even avoiding sales tax.

Generally I am focusing on closeout items, or high value/quality wheels and tires. Right now I have a set of Bremmer Kraft 19x10 ET35 10 spoke wheels. And blowout prices on matching tires. Admittedly this fitment is extreme and will take some coaxing. Think "Stanced".

Been working with Forgestar wheels, on behalf of a RS6 owner who wanted 18's. We found a classic 18x9 (or 8.5), 5 spoke flow-form forged in the USA made wheel will fit the RS6. There's custom offsets, colors, treatments (polishing, paint), w/o breaking the bank. Well under $500 per. Right about 21-21.5lbs depending on ET, and plenty strong. Almost bet the ride quality improves with such a weight loss. Downside is lead time is typically 4-6 weeks.

http://www.forgestar.com/v2/wheelscf5.php

Prices haven't changed since 2009, which is impressive. See how long that holds out.

I might be able swing some sort of group buy. Or ply some friendly pressure to reduce production time on a handful of RS6 specific wheel sets.

[audisscott]

Just got my OZ Superturismo LMs in matte grey, they are 19x9.5 with a 30mm offset and I mounted 275/30/19 Sumitomo HTRZIII's. They fit perfect w/out a spacer and drives 10x better than my old 20" OZ Ultraleggara's

16362163631636516367

[Dmb408]

18x8.5 offset 32 will fit right? Those 2 mm's aren't a dealbreaker right?

[Other_Erik]

18x8.5 offset 32 will fit right? Those 2 mm's aren't a dealbreaker right?

1/8th inch closer to the strut, not a dealbreaker so long as you're not running wider tires / lowered suspension. What kinda goodies are you looking at?

O_E

[Dmb408]

BBC RC's that are painted black. Going for weight savings...

[Turbowned]

Can anyone help me with a quick calculation?

I have a set of 18x8.5" +45 front and 18x9.5" +45 rear Prodrive GC-012L forged wheels left from my Subaru. Stock wheels are apparently 18x8.5 +30?

The Prodrives are 5x100 so I'd need adapter spacers and I'm not sure how they'd look with 255-width tires on staggered wheels, but if I were to make them work, what size adapter/spacer would make them sit pretty flush? The fronts are about 15mm higher in offset than stock and the rears should be 10.4mm lower if my math is correct. I paid a good amount for these special-order wheels and they're lightweight and look incredible, so I'd love to not have to sell them at a loss and instead re-purpose them on the Audi (if possible).

On ECS Tuning's website I see I can opt for 20, 25, or 30mm adapters. Should I perhaps go 30mm up front and 20mm in the rear, or...?

[Other_Erik]

Can anyone help me with a quick calculation?

I have a set of 18x8.5" +45 front and 18x9.5" +45 rear Prodrive GC-012L forged wheels left from my Subaru. Stock wheels are apparently 18x8.5 +30?

The Prodrives are 5x100 so I'd need adapter spacers and I'm not sure how they'd look with 255-width tires on staggered wheels, but if I were to make them work, what size adapter/spacer would make them sit pretty flush? The fronts are about 15mm higher in offset than stock and the rears should be 10.4mm lower if my math is correct. I paid a good amount for these special-order wheels and they're lightweight and look incredible, so I'd love to not have to sell them at a loss and instead re-purpose them on the Audi (if possible).

On ECS Tuning's website I see I can opt for 20, 25, or 30mm adapters. Should I perhaps go 30mm up front and 20mm in the rear, or...?

Front: Your new setup would be 15mm closer to the strut
Rear: Your new setup would be 27.7mm closer to the strut

Fronts you'll want 20mm if you can't find 15mm, but you'll need to roll your fender lip just a hair if you're lowered.
Rears, go for 30mm for the stock look plus a tenth of an inch

Stagger your tire setup! 255/40/18 on the front is within .4% rolling diameter (well under the margin of error) of 295/35/18 on the rear, and the tires will have a better approach angle on those 9.5 wheels, good squared shoulders almost equivalent to the 255's in the front.

O_E

[s8prtotype]

Maannn those prodrives with some concave on the RS.... droolll


http://8speed.net/manufacturer/prodrive_onedaydrive/img/gallery_L_6.jpg

[Dmb408]

would you guys ever run wobble bolts for 5x114.3 wheel to our 5x112 pattern?

[Other_Erik]

would you guys ever run wobble bolts for 5x114.3 wheel to our 5x112 pattern?

I'd rather run an adapter than wobble bolts. You're putting a lot of strain on the mounting hardware putting it off-center like that, and 450lb/ft of torque is a lot of shearing force... Not that much difference in price between the two options, either.

O_E

[Dmb408]

But with adapters I effectively run a big spacer right? So say, for argument ;) , there is a nice pair of forged 18x8.5 et 30 forged wheels out there ...15mm spacer/adapters would push those out too far right...

[Other_Erik]

But with adapters I effectively run a big spacer right? So say, for argument ;) , there is a nice pair of forged 18x8.5 et 30 forged wheels out there ...15mm spacer/adapters would push those out too far right...

Correct, the spacers would effectively decrease the offset by the thickness of the spacer. You would effectively be running 18x8.5et15

O_E

[Dmb408]

so effectively for our car, you'd only want to run adapters if you are looking at a 9.5 wheel probably right

[Other_Erik]

so effectively for our car, you'd only want to run adapters if you are looking at a 9.5 wheel probably right

I'd still prefer adapters over wobble bolts regardless the width/offset of the wheel.

O_E

[Dmb408]

i agree with you on the shear, but ecs tuning sells them, and they are a pretty well thought out outfit...i mean i think in their demo video they are putting them on an R32...

[2000c43]

RS6 with factory 18" wheels (recently powder coated gunmetal) with 10mm ECS Tuning spacers all the way around.16520

[s8prtotype]

Keeping it clean and mean! love it!

[lswing]

RS6 with factory 18" wheels (recently powder coated gunmetal) with 10mm ECS Tuning spacers all the way around.16520

Very nice...I really like our stock rims, would have been sweet to have a 19" option.

[Other_Erik]

RS6 with factory 18" wheels (recently powder coated gunmetal) with 10mm ECS Tuning spacers all the way around.16520

Very nice! Very reminiscent of my winter wheel setup - stock 18's painted meteor gray (damn near matte black / eggshell finish plus a bit of metallic gray flake) on Blizzaks. I've always been tempted to throw the rear wheels out just a bit further, but I know what'd happen if I did - first time going over a speed bump scrapey scrapey tire to fender lip contact. Maybe combine some 20mm spacers in the rear with spring blockers to keep the car from being able to settle that low?

So - not that 10mm is _that_ big a difference, but did you get longer lug bolts to compensate?

Any rubbing in the front while turning lock-to-lock?

O_E

[kruat]

I put 12mm on the rear, but none on the front at the moment. 12mm was the smallest spacers I had laying around. I'll probably end up putting a 8mm on the front as well.

[2000c43]

Thanks s8prtotype and lswing. Other_Eric...I purchased the 10mm spacer kits from ECS with the longer wheel bolts included. I went with the 10mm (after trying some smaller sizes) because the 10mm is the smallest they make that are still hubcentric. I have no problems on the rear at all. On the front, if you go over a bump in the road at speed, you hear a brief rub of the tire on the plastic liner. There is no tire to fender lip contact just tire to plastic liner on compression once and a while. I think it is a function of the spacers in combination with the Koni Yellows, which lowered the car just slightly and is a bit softer on the front compression stroke. I think 10mm spacers with DRC or a stiffer aftermarket setup (even Koni Yellows set a bit stiffer) would rub very infrequently, if at all. Either way, doesn't bother me and the wheels look "just right" for me with the 10mm spacers.

The wheels needed to be refinished so I had them done in a satin finish in a color that matches the grey on the center of the factory Audi center cap. The wheels were powdercoated and the plastic center caps were painted to match. I removed the Audi 4 rings on the center caps before painting and then had the 4 rings on the center caps, front emblem and rear emblem all painted gloss black by the wheel refinisher using automobile paint. The silver trim on the car (windows, front grill surrounds, mirrors, and trunk strip) were wrapped in gloss black vinyl (so it is reversible). Very happy with how it all came together. Car looks mean and very stealthy now IMO.

[2000c43]

Thanks s8prtotype and lswing. Other_Eric...I purchased the 10mm spacer kits from ECS with the longer wheel bolts included. I went with the 10mm (after trying some smaller sizes) because the 10mm is the smallest they make that are still hubcentric. I have no problems on the rear at all. On the front, if you go over a bump in the road at speed, you hear a brief rub of the tire on the plastic liner. There is no tire to fender lip contact just tire to plastic liner on compression once and a while. I think it is a function of the spacers in combination with the Koni Yellows, which lowered the car just slightly and is a bit softer on the front compression stroke. I think 10mm spacers with DRC or a stiffer aftermarket setup (even Koni Yellows set a bit stiffer) would rub very infrequently, if at all. Either way, doesn't bother me and the wheels look "just right" for me with the 10mm spacers.

The wheels needed to be refinished so I had them done in a satin finish in a color that matches the grey on the center of the factory Audi center cap. The wheels were powdercoated and the plastic center caps were painted to match. I removed the Audi 4 rings on the center caps before painting and then had the 4 rings on the center caps, front emblem and rear emblem all painted gloss black by the wheel refinisher using automobile paint. The silver trim on the car (windows, front grill surrounds, mirrors, and trunk strip) were wrapped in gloss black vinyl (so it is reversible). Very happy with how it all came together. Car looks mean and very stealthy now IMO.16526

[Other_Erik]

16526

Only on RS6.com would someone title the picture "RS6 Garage" when there's a red Ferrari hanging out in the background next bay over. She looks mean as hell and very well-finished! Very tastefully "murdered out" - just need limo tint :) Triple-black is a good look for these cars, and saves the embarrassment of brake dust caked all over stock wheel color.

O_E

[Dmb408]

OK. I am kind of pre-posting here but I have 18x8.5 et35 being delivered today. They will probably clear with stock 255s right, but I will want to run 5mm spacers to get at least back to stock look right? I will post with a pic and say what they are when I actually get them on the car. I'm pumped.

[Other_Erik]

OK. I am kind of pre-posting here but I have 18x8.5 et35 being delivered today. They will probably clear with stock 255s right, but I will want to run 5mm spacers to get at least back to stock look right? I will post with a pic and say what they are when I actually get them on the car. I'm pumped.

This changes the wheel placement very slightly. The inner and outer lips of the wheels will each be 1/4" further out from the wheel hub (meaning 1/4" less clearance to the strut) - If you can find 5mm spacers, that's 80% of that difference. I _think_ I've seen 8mm spacers, those would be ideal (125% of the difference, sticking the outer edge of the wheel just over a half inch further poking out, moving the inner edge of the wheel 1.7mm away from the strut compared to stock setup.

O_E

[Dmb408]

Dang I already ordered 5mm, let me see if I can get them to change to 8mm. My new heels supposedly require conical seat and not ball seat like OE. I believe our OE shank is 27mm right?! Even though somewhere in this thread someone says 28mm. Can I run 30mm? ECS tuning has conical seat in black at 30mm. Well I guess if I switch to 8mm spacers I just answered my own question, oops.

[Dmb408]

OK, changed to 8mm...I guess the benefits of the spacer companies being real backed up. So I can run/should run 30mm shank right?

[Other_Erik]

OK, changed to 8mm...I guess the benefits of the spacer companies being real backed up. So I can run/should run 30mm shank right?

Sounds perfect, don't forget to take pics for us!

O_E

[Dmb408]

I will...the minute the spacer company gets me the spacers, that day or the next I'll put them on and post up some pics. If I had my guess they try to clear out work orders before the holiday but ship too close to the holiday so I'll get them on July 6.

[Dmb408]

OK, I screwed up. Custom 8 mm spacers showed up and I zonked out and bought lugs that were too short (remembered conical and not ball for these wheels but then only added 3mm). So below I am only running centering rings. 18x8.5 et 35 forgestar's CF5 wheel ~18.5 pounds vs 31.8 pounds stock. Stock vs new, same shot. Found them on Ebay for a steal, some guy never put them on a car and they were still in boxes from a while ago.




1656216563

[G2]

Looks sharp even from afar. Too bad the file size here is so small (admin?).

That's light, very. And even certainly lighter than even what Forgestar had told me. Had been talking about 18x9" also for an RS6. Nine inch is a better width for a 255, at least for handling. Audi runs the narrowest tire to wheel ratio of nearly any euro manufacturer. Some tire companies won't sell the wide width of tire needed unless it's specified for a specific Audi (A6 4.2 with sport pkg is one).

Nice with Forgestar is the custom machined off-set per request, or to match OE spec. No spacers. Downside is 4-6 wks lead time to make them. Upside is they are USA forged and reasonably priced from the right source. With my factory direct wholesale connection, also intend to get a set. Likely some wide 18's for hard driving. But then again, when switching back to the stock wheels, they seem to roll heavy and thump, even shudder on certain bumps (with Michelin AS-3's no less). It's not "bad", but annoying at first. The summer wheels are 7lbs lighter, making for a noticeable difference in how they role and ride. Why Audi used such heavy wheels on the RS6 may just boil down to a cost issue...

Dealing with aftermarket lugbolts, with spacers, is usually a bit tricky and a compromise. Better for bolts to be too long than short. There is plenty of room past the hub flanges.

If memory serves 27-28mm is stock, add thickness of spacers, factor in wheel hub thickness (it may vary with custom wheels; offsets). Mine comes out to like 38mm, and use 40mm bolts, with 10mm spacers. FYI- if using exact length bolts, closely . inspect the first 1-2 threads. Most import bolts (in general) have or can have a pronounced taper, reducing thread engagement. It's recommended to check for actual engagement (rotations, something like 7 to equal 10mm).

Quite interested to hear how the wheels effect driving dynamics.

[Dmb408]

So I feel like I can feel that the wheels are a little too inward without the spacers but who knows, call it confirmation bias.

I just ordered the longer lugs so I'll have pics with spacers by next weekend.

As far as the lightness, I could feel the reaction difference, I have done this with many cars (i.e. really lightweighted the wheels) and I can always feel the difference. The car just seems like it reacts a little quicker off the line.

[CBeau]

I did read this thread... most of it... so please don't yell at me.

My wheels = RS4 19x9 ET 29, car is all stock DRC height etc.

I am about to buy some 265/35s.... should fit right? I calc. that compared to stock offset is only 1 less and treadwidth aprx. 1" bigger and outter diam. aprx. .3" bigger.

[Other_Erik]

I did read this thread... most of it... so please don't yell at me.

My wheels = RS4 19x9 ET 29, car is all stock DRC height etc.

I am about to buy some 265/35s.... should fit right? I calc. that compared to stock offset is only 1 less and treadwidth aprx. 1" bigger and outter diam. aprx. .3" bigger.

255/35 is a closer match to stock rolling diameter, but 265/35/19 only throws speedo off by 1%. Without spacers the inner lip of the rim is ~1/4" closer to the suspension. You're gaining about 4% treadwidth (~.4" wider tread) going from 255 to 265 width. Sounds like not much, but every size up is that much more meat on the asphalt. To answer the un-asked question, the next size that has a close match to stock is 295/30/19, ~1/4% off undersize, or 305/30/19 ~2/3% off oversize.

Not sure where you're from since you don't have the location in your profile, but if you're anywhere snowy then the reverse side of this is: the wider the tire, the wider the crush pattern. Your car won't sink as far into snowpack. Same goes for rainy weather - the wider the tires, the more surface area to weight ratio, the more you'll tend towards hydroplaning unless you have good grooves to push the water out and away from your tread.

A good rule of thumb with these cars - 3 horsepower per millimeter of treadwidth before you start losing traction in a straight line. So, unless you're making over 750WHP, going wider than 255 just means you're spending more on tires. All that goes out the window when you're talking twisties / road course / track driving, in which case go with the widest rears you can find and stock or stock ++ in the fronts to keep traction through the corners.

265/35/19 should fit fine, you may want spacers (5mm should be fine) to keep the stock wide stance, and if you've got suspension goodies (lowered on Koni's?), there's a slight chance you'll need to roll your fender wells and/or trim the bolt head that pokes through into the wheel well from the engine bay area.

HTH
O_E

[Dmb408]

I got the longer bolts this week, they didn't come in black, so I need to paint the tops before I put them on this weekend. But I'll throw pics up after at a down the car angle, showing 8.5" 35 et. with and without 8 mm spacers.

[CBeau]

I can't believe the MFers don't fit on front. I think it may just be that nub people talk about filing down. Anybody got a picture of that, esp. one filed down?

I don't think its too tall although kinda close to the upper control arms. I can get 3mm or 5mm spacers in addition to filing nub, but I don't just want to put spacers on front and I'm afraid if put on back too it might push out to rub fender lip. Also at full lock seems like might rub liner some. Advice??


I did read this thread... most of it... so please don't yell at me.

My wheels = RS4 19x9 ET 29, car is all stock DRC height etc.

I am about to buy some 265/35s.... should fit right? I calc. that compared to stock offset is only 1 less and treadwidth aprx. 1" bigger and outter diam. aprx. .3" bigger.

[Dmb408]

Pics of the wheels done right, one just before I put the spacers on, sorry have some tension on the jack so it is not perfect but it was 90 degrees out so I needed to move fast so I didn't want to take two seconds to drop the car back down and pick my phone back up, (2) same side w/spacers (3) other side w spacers and (4) a trip to costco after spacers were done. I punched the bolts through cardboard so just the head was visible and then sprayed them with the flat black krylon i have used before, it didn't stick well but i was gentle putting the bolts on, making sure they were seated on socket, not much flaked off.
16592165931659416595

[lswing]

Here is your little nub friend....http://www.rs6.com/showthread.php/24309-19-x-9-5-Wheel-and-Tire-fitment-process-documentation

Use "site:rs6.com inner tire rub" to search for future reference. The links from Google always load adult friend finder first, just go back, then click link again and it works...sure they are nice girls though.

[urs6ville]

thinking of getting a set of Hartmanns for winter wheels (http://hartmannwheels.com/audi-wheels). Center bore is 66mm, reading that OEM broder is 57.1mm... is some adaptor required? Or does anyone have a set of OEM wheels for sale so I don't need to bother with adapters (just seems odd they are selling these as bolt on when you would need adapters).

[Other_Erik]

thinking of getting a set of Hartmanns for winter wheels (http://hartmannwheels.com/audi-wheels). Center bore is 66mm, reading that OEM broder is 57.1mm... is some adaptor required? Or does anyone have a set of OEM wheels for sale so I don't need to bother with adapters (just seems odd they are selling these as bolt on when you would need adapters).

Yes, you will need an adapter for those wheels, or they will vibrate like crazy and probably toast your wheel bearings.

57.1mm to 66.6mm adapters have been discussed a couple of times here, and can be had pretty cheap. I think the common name for them is "hub centering rings" - don't bother with plastic, go for milled alu or 4041 stainless.

O_E

[Smiler]

Anyone put 21" on C5?

[ben916]

There was a guy in San Diego that had S8 21" chrome 9 spoke rims on his C5 RS6.

Unsure of the quality of the ride on 21"s as I have ridden/driven an RS6 with 20" and it wasn't so good.

[Smiler]

Yes it wouldnt be a nice ride, just for show.

I have a god deal for a set of oem Rs6 9,5x21 et25.
With 255/30 they will be 3,8% bigger then 255/35 19.
I probably need to raise the car a little...

[Other_Erik]

Yes it wouldnt be a nice ride, just for show.

I have a god deal for a set of oem Rs6 9,5x21 et25.
With 255/30 they will be 3,8% bigger then 255/35 19.
I probably need to raise the car a little...


Matching tire size would be 255/25/21

Will be very harsh, you've been warned! Also, see other threads about fitment of 9.5" wide wheels, you're going to need to grind the casting nub on the upright and probably add some spacers - 19x9,5 et25 is 9mm closer to the strut than stock, grab some 10mm spacer/adapters since the newer RS6 wheels will have a 66.6mm hub bore.

O_E

[Smiler]

Matching tire size would be 255/25/21

Will be very harsh, you've been warned! Also, see other threads about fitment of 9.5" wide wheels, you're going to need to grind the casting nub on the upright and probably add some spacers - 19x9,5 et25 is 9mm closer to the strut than stock, grab some 10mm spacer/adapters since the newer RS6 wheels will have a 66.6mm hub bore.

O_E


Yepp!

I have no issues with 10x19, previous owner had these 10,5x20.

16786


1,5% bigger...

DUNLOP SP SPORT MAXX GT 275/25 R21 92Y

:)
16788

[Smiler]

:vhmmm::doh::0::dig:

16811

[nistah]

Gents I reviewed last few pages of postings but I am finding myself somewhat dyslexic with the measurements needed to determine if the wheel & tire set I'm looking at (20X9.5 ET43 255/30/20 ) will make proper fitment on the RS6. I saw O_E's post up page about fitment of 9.5" wide wheels but I'm unsure if that applies here since the ET in the example was 25 and it appears to be ET 43 on set I'm looking at while OEM stuff is in between at ET 30 confused, any advice appreciated thanks in advance as always

[nistah]

Follow up post seeking opinions as to which of these will look/fit the beast best:

http://www.ebay.com/itm/19-HRE-FF01-Wheel-Set-for-2012-Audi-A4-S4-/311502658486?hash=item4887015bb6:g:-iIAAOSw4UtWTQko&vxp=mtr (http://www.ebay.com/itm/19-HRE-FF01-Wheel-Set-for-2012-Audi-A4-S4-/311502658486?hash=item4887015bb6:g:-iIAAOSw4UtWTQko&vxp=mtr)

http://www.audizine.com/forum/showthread.php/658210-Hre-p43sc-20x9-5

http://www.audizine.com/forum/showthread.php/678605-20-quot-HRE-P41-20-quot-X-9-quot-ET-46-Hankook-Ventus-Tires-255-30-20-Freshly-Refinished!

[s8prtotype]

None of those will work, less S4 offset more RS4 offset.

[Dmb408]

Yea that is 28MM closer to suspension...don't think that would work...

[Smiler]

Spacers!!!

[joe180]

170291703017031
Hartmann 19x8.5 ET25 - Bridgestone 255 35 19. No spacers, no rubbing ever

[GreggPDX]

Hartmann 19x8.5 ET25 - Bridgestone 255 35 19. No spacers, no rubbing ever

Gorgeous!!!

[DHall1]

That is a good fitment

[bakes]

Morr wheels 19*9 et 35 tires are Michelin PSS 255/35/19



http://i5.photobucket.com/albums/y173/gregbaker/20160419_122324_zpsursrjmzk.jpg

http://i5.photobucket.com/albums/y173/gregbaker/20160419_122413_zps0iwlqzyn.jpg (http://s5.photobucket.com/user/gregbaker/media/20160419_122413_zps0iwlqzyn.jpg.html)

http://i5.photobucket.com/albums/y173/gregbaker/20160419_122305_zps7r94wqfl.jpg (http://s5.photobucket.com/user/gregbaker/media/20160419_122305_zps7r94wqfl.jpg.html)

[Dmb408]

Wow, nice.

[mgmarsh39]

Those Morr's are my favorite wheel for sure. VS8.2's?

[bakes]

yes they are the 8.2's.


Those Morr's are my favorite wheel for sure. VS8.2's?

[bakes]

yes they are the 8.2's.

I'm now thinking about selling the MORR wheels if anyone is interested. Asking 1800 plus shipping. PM me if you are interested.

[bakes]

I'm now thinking about selling the MORR wheels if anyone is interested. Asking 1800 plus shipping. PM me if you are interested.

Price drop to $1600

[nistah]

My wheels = RS4 19x9 ET 29, car is all stock DRC height etc.



CBeau do you have any pictures (or can anyone find a generic photo of the RS6 running RS4 OEM wheels)? I'm looking at a set of RS4 wheels for my winter setup. TIA

[Bigglezworth]

CBeau do you have any pictures (or can anyone find a generic photo of the RS6 running RS4 OEM wheels)? I'm looking at a set of RS4 wheels for my winter setup. TIA
Fellow member car from a while back.
17742

[nistah]

Thanks Bigglezworth:thumb: Got the set of RS4 wheels & they came to me in excellent shape with 255 35 19 Dunlop SP winter sport 3D tires. The wheels look and fit great, the tires are kind of loud guess will have to get used to it seems to be the trade off for having traction in the snow.

To offer a data point for others, I will say the OEM RS4 wheels are an improvement in that they fit right up sans the hub centric bore adapter rings and spacers required to run the later generation "peelers", so that is a plus when going over bumps etc feels slightly more solid.

Still need to acquire the correct center caps, anyone know where to find those?

Before:
17770

After:

17769

[CBeau]

CBeau do you have any pictures (or can anyone find a generic photo of the RS6 running RS4 OEM wheels)? I'm looking at full set of RS4 wheels for my winter setup. TIA


Sorry I just now saw your request... but yes mine look pretty just like that. Mine came with center caps. They do fit great. I deal with wheels a lot and those are very high quality and strong in my semi-qualified opinion.

My car is same color as yours too. I want some kind of nice splitter for front. I don't drive it much but still it needs a little tasteful something to finish the front off. Was following a group buy thread on here while ago but nothing ever came of it. These cars are getting old!! Young kids look at it as a total classic.... which it is.

[Nate Dog]

I have just read this lengthy but very informative article & appreciate all I've learnt so I thought I would add my details & setup in case it gives someone a perspective they're looking for. This is my machine, and it is on its original wheels 19 x 9 ET35 which I believe is the European set up even though I'm way down in the antipodes, Christchurch, New Zealand which just below & to the right of Australia in case your wondering,... think All Blacks, Rugby, & the Haka etc. I have had the failed DRC replaced with Bilstein adjustables so that allows me to set the ride height how i like it, which is quite low compared to some others I see here. The only issue I've got is slight rub on inside of front guards when turning full lock, but no issues any other time even when driving to the limit on tight winding hills. I to was wanting to change my wheels & have been wanting a very nice set of RC10 Rohanna's from the USA as I'm very keen on a very deep dish look with wheels set to the outer edge of the guards. I was almost going to risk 20" but this article has convinced me to stick with 19 x 9.5 with a ET31. I hadn't realised the ride & drivability compromise, this car needs every bit of help it can get to go around corners at pace. Not sure when budget will allow this but once complete I'll post some pic's.
17785

[nistah]

Nate Dog nice, love those euro 19'S on your RS6!

I got my center caps for the RS4 wheels w/ winter tire set up I'm running. Bring on the snow!!!http://i1244.photobucket.com/albums/gg577/Erik_Leve/15327224_10211334742505225_1288598806385522012_n-2_zps6mx50926.jpg

[AndyRS6]

Beast got new sneakers 19x9 et33 from S5 OEM with 10mm spacers, so far no rubbing,

1795017951179521795317954




Andriy

[kilian tuning]

Can we set the circumference in the menu

[doncecone]

After a few week of thinking and measuring i went for staggered setup - 275/35 19 Y 100XL rear on OEM 19" and 245/40 19 Run Flat 98XL front. This fits perfect, doesn't rub anywhere. No modification. Very satisfied.

[G2]

Very curious setup. I'm sure others would like to see this.

[doncecone]

Here it is. I did a manual swap, a didn't drive the car much with the automatic and what i felt is that the back was wheelspining too much, Not with the 275 at the back, that is not so severe. I pus Michelin Sport and after warming up, the car is very stable. Drove it with this setup 1000 miles alreade - highways, twisties, city and it handled brilliantly, very stable and way more comfortable. Maybe a bit more clumsy, but very little. As i live in Sofia, Bulgaria and here the roads are not so good and it was cruitial for me to have 98 or 100 XL tyre. I put Runflat infornt, as the car is heavier there. Yes, they are heavy and not so comfortable, but not damaging the tyres is more important to me.

1800918010

[rah]

Beast got new sneakers 19x9 et33 from S5 OEM with 10mm spacers, so far no rubbing,

1795017951179521795317954




Andriy

I like the look of those on the RS6 :0:

[rah]

I have just read this lengthy but very informative article & appreciate all I've learnt so I thought I would add my details & setup in case it gives someone a perspective they're looking for. This is my machine, and it is on its original wheels 19 x 9 ET35 which I believe is the European set up even though I'm way down in the antipodes, Christchurch, New Zealand which just below & to the right of Australia in case your wondering,... think All Blacks, Rugby, & the Haka etc. I have had the failed DRC replaced with Bilstein adjustables so that allows me to set the ride height how i like it, which is quite low compared to some others I see here. The only issue I've got is slight rub on inside of front guards when turning full lock, but no issues any other time even when driving to the limit on tight winding hills. I to was wanting to change my wheels & have been wanting a very nice set of RC10 Rohanna's from the USA as I'm very keen on a very deep dish look with wheels set to the outer edge of the guards. I was almost going to risk 20" but this article has convinced me to stick with 19 x 9.5 with a ET31. I hadn't realised the ride & drivability compromise, this car needs every bit of help it can get to go around corners at pace. Not sure when budget will allow this but once complete I'll post some pic's.
17785

Nice set up! do you have it on PSS9 correct? This is the set up i have and i don't think i can get it that low... I have more adjustments to make but i will see. I am also still trying to get the dampening adjusted correctly, it feels like the car wants to sway a little bit in hard corners, really do not like that, the back end seems to want to do that, same on yours?. I also have a similar wheel size set up as yours, that is the reason i am asking you those questions :0:

[04rs6cdn]

Like it ! What is your tire size ? If its 255/35/19, I wonder if we could go with 265 just to give it a fuller look?

[04rs6cdn]

Like it ! What is your tire size ? If its 255/35/19, I wonder if we could go with 265 just to give it a fuller look?

[boca rat]

Staggered with AWD is OK? I thought that I read somewhere that is not OK?

[Bigglezworth]

Staggered with AWD is OK? I thought that I read somewhere that is not OK?As long as the outside circumference is the same, there is no problem. Porsche, Lamborghini, Mercedes, etc., all do it. I'm looking to try out a 255/35/19 front and 285/30/19 rear set-up here shortly.

[RSSIK]

I know its been a while but do you have any pics?


I have 19x10 Rotiforms, tried both ET 35 (MIA) with 5mm spacer. Now running same size wheel with ET25. Very aggressive, but no spacer, and most of the time no rubbing. the Michelin 275/30 R19 Super Sports are not the widest tire and stretch a little, so it helps with the rubbing issue. R888s are very square and wide, and would for sure rub on this config.

[RSSIK]

any more pics of the 5 spoke setup? specs?

[QUOTE=Smiler;278503]Yepp!

I have no issues with 10x19, previous owner had these 10,5x20.

16786


1,5% bigger...

[Bigglezworth]

Vossen's w/ crazy skinny tires. Rubber bands.

[BoiseAudi]

20x9.5 HRE 501's with ET 26 - http://imgur.com/a/fr6na

[GreggPDX]

20x9.5 HRE 501's with ET 26 - http://imgur.com/a/fr6na

What size tire is that?

[BoiseAudi]

255/35/20

[Jms215]

18130
20x11 rear 285/30 20x10 255/35

[nistah]

Question: I have run 255 35 19 tires on my OEM RS4 wheels no issue. Looking into changing tire set up will running 265 35 19 tires on OEM RS4 wheels should the 265's work OK or will I experience rubbing and/or clearance issues with the brake rotors?

[nistah]

Question: I have run 255 35 19 tires on my OEM RS4 wheels no issue. Looking into changing tire set up will running 265 35 19 tires on OEM RS4 wheels should the 265's work OK or will I experience rubbing and/or clearance issues with the brake rotors?


Can anyone chime in on this question? Thanks in advance...:addict:

[mrdave]

I have 265/35r19 Conti ECS tires on 19x9.5 et25 wheels and they fit perfectly. I ground the little "nub" off the front uprights to be sure.

pics here: http://www.rs6.com/showthread.php/33337-Daytime-photos?p=287849&viewfull=1#post287849

[CBeau]

I am running same OEM RS4 wheels with 265/35 Pilot Sports and made no mods to anything and no problems. They may rub a little in fender well at full steering wheel lock not sure. Curious, what difference would tire size make to any brake clearance? They'll fit.

[travish325]

Swapped out my V702s for V701s. These are 19x8.5 ET 45? I believe. I am running a 5mm spacer front and rear.

Thinking about swapping the rears for 19x9.5

18583

[DHall1]

I run 19x9.5 et33 square

265/35/19

fits perfect

imho the et45 are not the best fit for RS6 fender openings.

[nistah]

Thinking of upgrading my wheels would be a staggered set of 19x9 Forged Monoblock for Audi B8 Chassis ( A5, A4, S5, S4) 2009 to 2015 model yearsUltra lightweight 19x9 ET24 and 19x9 ET19 fit the RS6 with rolled fenders? I read this whole thread and it seemed to suggest anything to 20MM to 30MM was good however I need opinions/inpput. Mu current RS4 OEMs are 29 ET and work perfectly

Seller states: May fit larger Audi Sedans with spacers.
Will fit B8 Allroad with a spacer.


Staggered fitment flush with fenders - No rubbing





Thanks!

[travish325]

I run 19x9.5 et33 square

265/35/19

fits perfect

imho the et45 are not the best fit for RS6 fender openings.

Agreed on the best offset.

Btw, do you think you could fit 275s on those 19x9.5 et33s without running? I am wanting a nice wide tire in the rear.

[DHall1]

Yes, 275/30s will go right on

[G2]

I think a 285 would or 295 might fit the rear....

After running 4 or 5 sets of 275/30 and 35's have noticed actual tire sizes vary by several MM. But generally haven't had any problems (once the hub carrier nub was removed) with clearance if the off set is appropriate. Solved with a quiver of wheel spacers....

I have the same size and offset as you Dave. Except on the rear which is 31mm.

[nistah]

Does anyone have data points re: running a staggered set of 19x9 ET24 front and 19x9 ET19 rear? Is it possible & if yes do fenders need to be rolled?

[DHall1]

I agree on both counts

285 or 95 could work on the rear but I prefer square setups on all my Audis

i also found a quite beefy 265/35/19 Michelin PSS in NO fitment. Which means Porsche fitment. That tire is fat and wide.

Suits the RS6 perfectly.

18586


I think a 285 would or 295 might fit the rear....

After running 4 or 5 sets of 275/30 and 35's have noticed actual tire sizes vary by several MM. But generally haven't had any problems (once the hub carrier nub was removed) with clearance if the off set is appropriate. Solved with a quiver of wheel spacers....

I have the same size and offset as you Dave. Except on the rear which is 31mm.

[nubcake]

Avoid staggered setups, they will make the car handle horribly. If anything, only good for looks.
Most of the weight is in the front, so with square setup it's nice and balanced. You put more meat in the rear - it starts to understeer in the utterly disgusting fashion.

Ask me how I know: got the car with 275s in the front, 315s in the rear.
I really see no reason to run non-square setup on this. 285s or 275s on all 4 corners will give you plenty of grip and also look totally fine.

But YMMV for all I know.

[DHall1]

Yes, this setup will work fine w 265/35/19. I actually like it over the 275/30

my style is this....fill the arch, match up sidewall to fender gaps

275/40/20 on OEM forged RS7 wheels. Lots of sidewall and beefy tire that sits well in the wheel arch. 2in drop on the SQ5
18584

18585

Question: I have run 255 35 19 (tel:255 35 19) tires on my OEM RS4 wheels no issue. Looking into changing tire set up will running 265 35 19 (tel:265 35 19) tires on OEM RS4 wheels should the 265's work OK or will I experience rubbing and/or clearance issues with the brake rotors?

[G2]

275's won't handle well as they could/should or look good on 9" wheels. A slight compromise could be made using Japanese tires and 35 series (255-265/35's). Conti, Michelin and Vredestein are true or wide for their size.

Most likely narrow tires will be needed for those positive offsets and fenders rolled more. Ride height is a big factor as well.

After last weekend drive now have a border line justifiable reason to have a set of 19x10's made.. If I can get my body guy to make some nice OE looking fender flares....even bigger.

[G2]

Avoid staggered setups, they will make the car handle horribly. If anything, only good for looks.
Most of the weight is in the front, so with square setup it's nice and balanced. You put more meat in the rear - it starts to understeer in the utterly disgusting fashion.

Ask me how I know: got the car with 275s in the front, 315s in the rear.
I really see no reason to run non-square setup on this. 285s or 275s on all 4 corners will give you plenty of grip and also look totally fine.

But YMMV for all I know.

That's amazing, like to see those 315's!

[travish325]

Can anyone confirm 285/35/19 will fit on the rear with 19x9.5 et33 wheels?

[DHall1]

Not holding my breath


Can anyone confirm 285/35/19 will fit on the rear with 19x9.5 et33 wheels?

[nistah]

Does anyone have data points re: running a staggered set of 19x9 ET24 front and 19x9 ET19 rear? Is it possible & if yes do fenders need to be rolled?


Can anyone chime in on this question? Thanks in advance, have my eye on a set of wheels I've wanted for quite sometime....:addict:

[travish325]

Can anyone confirm 285/35/19 will fit on the rear with 19x9.5 et33 wheels?

Well I guess we'll find out soon.... I have 285/30s on the way for these 19x9.5s.

Running these in the rear will give me a 3mm sidewall difference than in the front. Does anyone think that's going to be an issue on an AWD car? I know drastic diameter differences can cause issues, however, with this set up I will only have a 6mm total diameter difference.

[DHall1]

Ask your differential every time your running at highway speeds.

[G2]

I tried the exact same fitment and it was a decisive no-go on the front. It might have cleared the rear - can't remember. Tried the Pirelli P-Corsa's (60 treadwear!)- VERY wide for the size, made my 275's look like 255's. Sure would have been fun...

Tire pressure will likely make a bigger difference on the rolling diameter than the width increase. If the front tires are smaller will increase the effect due to heavy front end. The center diff might work a bit more than it's designed to, but have yet to hear of any related failures. Change that oil- frequently.

I run a square setup to keep things even as possible and for better handling.

[travish325]

I tried the exact same fitment and it was a decisive no-go on the front. It might have cleared the rear - can't remember. Tried the Pirelli P-Corsa's (60 treadwear!)- VERY wide for the size, made my 275's look like 255's. Sure would have been fun...

Tire pressure will likely make a bigger difference on the rolling diameter than the width increase. If the front tires are smaller will increase the effect due to heavy front end. The center diff might work a bit more than it's designed to, but have yet to hear of any related failures. Change that oil- frequently.

I run a square setup to keep things even as possible and for better handling.

So I'll have 255/35 in the front and 285/30 in back. Therefore, the fronts will be a total of 7mm taller. I'm thinking a little more air in the back should even things out. I'd love to run 295s, as that would make front and rear diameters even, but I don't think 295s will fit. I could also go down to a 245 up front and have even diameter that way.

[nubcake]

295s will fit with a bit of fender rolling.
7mm difference is significant, your diff won't like it.
Also, I warn you once again - it'll handle awfully.

[travish325]

295s will fit with a bit of fender rolling.
7mm difference is significant, your diff won't like it.
Also, I warn you once again - it'll handle awfully.

But will 295s fit on 9.5 wheel? I haven't seen a lot of positivity there

[nubcake]

That's amazing, like to see those 315's!

275/35/18 front
315/30/18 rear

VERY tight.
Rubs all the time.
Rear fenders are slightly rolled. No space on the inside, don't try to repeat.

1858718588

[nubcake]

But will 295s fit on 9.5 wheel? I haven't seen a lot of positivity there

That's another question. I wouldn't try that.
Mine are 10 and 11 wide.
I'd just get a square 275/30/19 if I was you.

EDIT: edited a better fitting size.

[travish325]

That's another question. I wouldn't try that.
Mine are 10 and 11 wide.
I'd just get a square 275/30/19 if I was you.

EDIT: edited a better fitting size.

Interesting. I'm not tracking the car or anything just driving on weekends, so handling isn't too much of a concern. That being said I think I'll try this staggered setup until I get a set of 9.5s for the front, and then try a 285 square setup.

[travish325]

But now you have me worried... Is a 1.2% difference in diameter really going to cause issues? I've heard within 3-4% of diameter on a Quattro is ok.

[nubcake]

Likely won't manifest itself instantly. And manual transmissions are cheap enough. :)

[travish325]

Edit:

Disregard. I have 255s on these 8.5 wheels now. Just gonna run the 9.5s in the rear with 255s for the time being.

[nistah]

I love these wheels, can anyone on here advise if they will fit? TIA

https://www.ebay.com/itm/HRE-P43-19x9-Audi-A5-S5-Fitment-Staggered/223071897729?hash=item33f01f0881:g:6WQAAOSwC-tZ8N3h (https://www.ebay.com/itm/HRE-P43-19x9-Audi-A5-S5-Fitment-Staggered/223071897729?hash=item33f01f0881:g:6WQAAOSwC-tZ8N3h)

[ttboost]

Not sure that this is helpful, but my Volk GR V2's were 19x9.5 and had a ET29. 19 might be a bit aggressive?

[nubcake]

19x9 ET24 on the outside is pretty much equal to 19x9.5 ET29 (actually 1mm deeper into the wheel well).
19x9 ET19 will stick out 5mm further.