20x10.5 et30 wheel with 275/30/20 tire on an RS6?

[tantheman]

Is this even possible? I know I am pushing it and it will not be the most confortable ride but I would like to do it if at all possible..I am aware that 19x10s and 20x9s fit, but 20x10.5s?

[4.2Crew]

At an absolute minimum, you'll need to grind-off the nub/knob from the front aluminum uprights... Once the nub is gone, the outer tie-rod end becomes the limiting inboard geometry----See pics in the original post below:

http://www.rs6.com/showthread.php/24309-19-x-9-5-Wheel-and-Tire-fitment-process-documentation?highlight=upright

[tantheman]

I see what you mean...thank you. Would it help to go with 255/35/20, which I realize will stretch the tire but give it a bit more side wall and making it a bit narrower?

[4.2Crew]

I don't know... Keep in mind, there is significant tire width and sidewall profile variability from not only tire brand, but tire model etc... You are creeping-up on a rim and tire size that can only be determined by test fitting. Good luck!

[4everRS]

I am very doubtful. A 255 would look rather silly on that wide of rim

[Bigglezworth]

I am very doubtful. A 255 would look rather silly on that wide of rimC'mon. Don't beat around the bush. Stretched tires on a luxury sport sedan would look STUPID.... Go bastardize a GTI.

[Smiler]

Previous owner, who sells wheels...
Works but bad idea hehe...

Vossen CV3 10,5 x 20" ET32
Falken FK452 285/25-20
http://www1.garaget.org/archive/12/11105/276926/large_276926-2828535.jpg

Kleemann TS-7 10,5 x 20" ET30
Falken FK452 285/25-20
http://www1.garaget.org/archive/12/11105/276926/276926-2707695.jpg

[4.2Crew]

Wow!... I really like the Vossen CV3's! Very noice!

[ttboost]

I'd be curious if the 20x10.5 fit and what ET works for that size...although I like the look and ride of my 19x9.5 ET29...

[Jimmy Joe]

No gusta. Looks like the fender lip is chewing on the tire.

[UrS6]

Previous owner, who sells wheels...
Works but bad idea hehe...

Vossen CV3 10,5 x 20" ET32
Falken FK452 285/25-20
http://www1.garaget.org/archive/12/11105/276926/large_276926-2828535.jpg

Kleemann TS-7 10,5 x 20" ET30
Falken FK452 285/25-20
http://www1.garaget.org/archive/12/11105/276926/276926-2707695.jpg
I think the Vossen wheels look great on that avant. But they look great in a showcar sort of way. I'd love a set on my car but all four would be bent before I got to work the first day I drove on them. My OEM 19's look live i've been driving on them with no tires.

[Smiler]

I have the oem 19" om my urS6 plus sedan :)
I like them...

Al 20" are just for show i think...

[trev0006]

This looks fantastic.




Previous owner, who sells wheels...
Works but bad idea hehe...

Vossen CV3 10,5 x 20" ET32
Falken FK452 285/25-20
http://www1.garaget.org/archive/12/11105/276926/large_276926-2828535.jpg

Kleemann TS-7 10,5 x 20" ET30 cheap ires (http://www.discountpartcenter.com/)
Falken FK452 285/25-20 fast cars (http://www.dpccars.com/)

[V8weight]

Those CV3's would look spectacular on... Lets say a Mercedes E55... But not so much on an rs6. Just not he right style in my opinion...

[4everRS]

Those CV3's would look spectacular on... Lets say a Mercedes E55... But not so much on an rs6. Just not he right style in my opinion...
Hmmmm. Yes. They would look just right on an e55. Especially the AMG variant.

[lswing]

Ughhh, nothing like a high performance car, with no performance setup, I've seen too many accords like that, better slap a wing on the back...I know each to their own...

[V8weight]

Ughhh, nothing like a high performance car, with no performance setup, I've seen too many accords like that, better slap a wing on the back...I know each to their own...

Long before your time, but there have been two RS6's on this forum with large aluminum wings on the decklid....

[lswing]

If those two are the track beasts then I fully approve...

[V8weight]

If those two are the track beasts then I fully approve...

Nope....

[4everRS]

Long before your time, but there have been two RS6's on this forum with large aluminum wings on the decklid....
Don't remind me of the atrocity. What happened to that guy?

[G2]

From my experience (observation) the rear has plenty of room for wider wheels. I'd venture a guess that 10.5" would fit, perhaps with a 295 rear tire. The front? I don't see how it would work w/o putting on new fenders (for 275's)- or adding fender flares. OR, using narrow tires..... which don't need all the tire width; obviously going for "looks"....and using narrow tires.

They might work driving in a straight line with 275's.....

My 19x9.5's ET33 and 275/35 tires are within 3mm of the "de-nubbed" front uprights. With a front 26" ride height (fender to ground) and the inner fender screw removed it doesn't rub, except on full lock when the tire lightly grazes the plastic liner (a 275/30 would likely prevent this; I did not like the look of 275/30's on my car).

Who's knows, maybe you'll be the first.:mech:

[vtraudt]

My RS6 came with staggered 20 inch, 8.5 in the front and 10 in the rear.
Tires:
245/35x20 front
255/35x20 rear

Issues I have:
a) rear are stretched (don't like the look)
b) diameter are on the large side (26/33mm larger than stock 245/40x18), but work
c) diameter difference is in the high side (for quattro diff longevity): 686.5/679.5 = 1% or 7mm height difference)

Mathematically good staggered 20" combinations are:

<colgroup><col width="64" span="3" style="width:48pt"> </colgroup><tbody>
235
35
20


275
30
20


</tbody>

and


<colgroup><col width="64" span="3" style="width:48pt"> </colgroup><tbody>
245
35
20


285
30
20

</tbody>

Is 235 for the front too narrow?
Is 275 or (even wider and taller) 285 in 30% series too wide/tall for the rear?

[ttboost]

You didn't post your offsets, so hard to say.
I find this tire/wheel calculator to be the most intuitive.

http://www.willtheyfit.com/


Plug all your info in and see what it looks like. You may have to input twice as you seem to be running different sizes front to rear. I know you can get away with 275's on 19's but not sure about 20's. I had 275's on all 4 corners with a 19x9.5 ET29.

[vtraudt]

You didn't post your offsets, so hard to say.
I find this tire/wheel calculator to be the most intuitive.

http://www.willtheyfit.com/

Just had to get the offset:




Plug all your info in and see what it looks like. You may have to input twice as you seem to be running different sizes front to rear. I know you can get away with 275's on 19's but not sure about 20's. I had 275's on all 4 corners with a 19x9.5 ET29.


Offset:
20x10 are ET42
20x8.5 are ET32

[vtraudt]

Offset:
20x10 are ET42
20x8.5 are ET32

We want to leave the front 245/35x20 as is.
For the 10" wide rear, the matching (rolling diamter for quattro diff life) would be 285/30x20 on the 20x10 wheel with 42 offset.

Haven't found a tire dealer to do a 'practice fit' (tires in that size too rare I guess).

Trying to get confirmation if rear will fit?

Currently running
front: 245/35x20 on 20x8.5 ET32 (no issue)
rear: 255/35x20 on 20x10 ET42 (no fit issue; just don't like stretch look, and rolling diameter difference front/back is 7mm or 1%.)

[nubcake]

You have to watch for inner well clearance in the rear. There's much more space if you're running coil-overs with "narrower" springs. I'd say it will fit if you are, but double-check for tire hitting the spring if you aren't.

In the rear I'm running 295/35/18 winter tires and 315/30 for summer. A tiny bit rolled fenders, and it's still a VERY tight fit.

EDIT: edited to make it clear, talking only about rears!

[vtraudt]

You have to watch for inner well clearance in the rear. There's much more space if you're running coil-overs with "narrower" springs. I'd say it will fit if you are, but double-check for tire hitting the spring if you aren't.

I'm running 295/35/18 winter tires and 315/30 for summer. A tiny bit rolled fenders, and it's still a VERY tight fit.

On what wheels are you running the 18" winters? What diameter are the summer? What wheels are the summers on. (diameter, width, offset)? We are running coil overs with narrower springs. On the 255/35x20 there is PLENTY of space to springs. More concerned about the 15mm the tire edge will be come out at the fender edge. With the 'stretched' 255, they certainly tuck in nicely under the fender.

Is anyone else running staggered on RS6? If so, what sizes?

[nubcake]

I run both summer/winter on one set of wheels, which are Porsche Carrera 18's, 10" front and 11" rear.
I'm not sure on the offsets since I bought the car this way and didn't source the wheels on my own. As a wild guess: wheels should be ~ET65 and adapter spacers are ~25mm, effectively making the wheels ~ET40. I will check definite offsets once I get to changing to summers (should be relatively soon-ish).
Here's the only "wheel" pic I currently have, took it few months ago:
17211

EDIT:
Google claims that rears are ET51, meaning with spacers they are ~ET30. ET58 for fronts, therefore ~ET35 real. I'm not 100% certain on spacer width, hence the approximation. Will confirm later.

[vtraudt]

Hard to believe you are running 315/30x18 on all 4 corners. Even with big offset, i would think they stick out to for, and in the front certainly hit the inner fender when turning.
The 'tire edge' (distance of the outer edge of the tire from hub face):
on our current setup (255x35R20, offset 42, 3mm spacer) is: 127.5+3-42=88.5mm from hub face.
285 tires (loose the spacer): 142.5-42=100.5
Your 315/30R18 on say 18x10 ET58, 15mm spacer: 157.5+15-58=114.5

[nubcake]

Hard to believe you are running 315/30x18 on all 4 corners. Even with big offset, i would think they stick out to for, and in the front certainly hit the inner fender when turning.
The 'tire edge' (distance of the outer edge of the tire from hub face):
on our current setup (255x35R20, offset 42, 3mm spacer) is: 127.5+3-42=88.5mm from hub face.
285 tires (loose the spacer): 142.5-42=100.5
Your 315/30R18 on say 18x10 ET58, 15mm spacer: 157.5+15-58=114.5

Sorry about not saying it clearer, I was talking only about the rears.
Winter fronts are 265/40, summers are 275/35.