C7 A6 Wheel Fitment

[krwalkman]

I tried searching through the forums to find a solid answer and I simply cannot.

Will someone tell me if we can indeed fit 20x10.5 rims on the A6? If we can, let me know what kind of offset I need to look for and any spacer requirements. If I can go this route, I would really like to, so I can get some more concavity. I know that some people have done it, so please chime in if you can.

My options for wheels I am looking at are:

20x9.5 ET40 mid concave
20x10 ET50 mid concave
20x10.5 ET30 deep concave
20x10.5 ET42 deep concave

Right now if I cannot do anything else I will order the 20x9.5 ET40 and space them to wherever they need to be. My current wheels are 20x9 ET32 and they are not quite out and flush, close though.

Also, I am not going to run a 255 tire on a 10.5" wide rim so if I have to do that I will stay will the 9.5. I want to run atleast 275, maybe 285.

If you can help me with this debacle I would really appreciate it.

Also, why the heck don't we have a wheel fitment sticky that shows a list of wheel specs paired with tires that fit on each individual car. There are a ton of posts about it.

[gk1]

Sorry I can't help with that one specifically. It should be the same as the S6 even though it has air suspension the metal parts that a wheel/tire combo would hit if too wide are the same. And like you I'm pretty sure there are guys running 20x10.5 on S6's. I would think nailing down the specifics of tire and offset to avoid fender rubbing would be the only question.
Let me know if you decide something different and need spacers I have H&R 15mm with longer bolts somewhere you can have.

[krwalkman]

Sorry I can't help with that one specifically. It should be the same as the S6 even though it has air suspension the metal parts that a wheel/tire combo would hit if too wide are the same. And like you I'm pretty sure there are guys running 20x10.5 on S6's. I would think nailing down the specifics of tire and offset to avoid fender rubbing would be the only question.
Let me know if you decide something different and need spacers I have H&R 15mm with longer bolts somewhere you can have.

Thanks Greg! I have 2 sets of spacers 20mm and 5mm, if I need something else I'll give you a holler. We just got the tires dismounted from Mikaela's Vorsteiners that are 20x10.5. I will try to mount them and see what happens.

Fender Rubbing and poking out too far are my concerns. I have heard that I may have to file the calipers to get certain sizes to fit. I'll update on here later.

[IceyTys]

I am running 21x10.5 ET 35 on a S6, so you should be able to fit with no problems. I am using 265/30 tires, but I could go up to 275 if I wanted to, but it would change my OEM rolling diameter, so I chose not to, so you should be fine. The only one I am not sure about is the 10.5 - 30mm offset as you might get too much poke. I too wanted the concave look, so 35mm is just right......40mm might have brought the rim in tad, but then i would have had to sacrifice the concave look a bit. Check out the wheel sizing calculator on 1010tires.com and it will help you with your offset measurements.

[DeRico]

+35 on down(eg. +15) and you should be golden. You looking for wheel poke, fender rolling etc.? If not then you should stick around +30/+35

[krwalkman]

I am running 21x10.5 ET 35 on a S6, so you should be able to fit with no problems. I am using 265/30 tires, but I could go up to 275 if I wanted to, but it would change my OEM rolling diameter, so I chose not to, so you should be fine. The only one I am not sure about is the 10.5 - 30mm offset as you might get too much poke. I too wanted the concave look, so 35mm is just right......40mm might have brought the rim in tad, but then i would have had to sacrifice the concave look a bit. Check out the wheel sizing calculator on 1010tires.com and it will help you with your offset measurements.

I have heard that the fitment on the S6 is different from the A6. Would you happen to know that?

[krwalkman]

+35 on down(eg. +15) and you should be golden. You looking for wheel poke, fender rolling etc.? If not then you should stick around +30/+35

I am trying to avoid wheel poke and rolling the fenders to be honest.

I tried to mount our 20x10.5 Vorsteiner VFF-102's this weekend and they weren't even close to fitting. I just got brand new rotors and pads so the calipers are way out currently. For these to fit in the front they needed 17.5mm of spacers, to fit in the rear they needed 5mm. Both of which were way outside the fenders for these wheels. They do have a very deep concavity though.

[krwalkman]

Photos from mounting Vorsteiners.

To be honest I dont remember what the offset is out them. There is a stamp inside that looks like it says O/S 11 or 17. Maybe @Mops@Nemesis can remember what they were. He sourced them at some point and we bought them from the original owner.



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[Mops@Nemesis]

20x10 ET30. The V-FF 102 never came in 5x112 10.5. 👍🏼

That spec needed at least 12mm spacers to clear even the B8.5 RS5 and SQ5 calipers.

[krwalkman]

20x10 ET30. The V-FF 102 never came in 5x112 10.5. 👍🏼

That spec needed at least 12mm spacers to clear even the B8.5 RS5 and SQ5 calipers.

Awesome, thanks Mops! I wonder why these stick out so far on the A6 with 20x10 ET 30 then? I guess it's effectively ET 11.5 in the front with spacers, and ET 25 in the rear. But still, these were like an Inch out in the front.

The wheels I am looking at are Vossen VFS 4s that would come in the offsets I listed up above. Vossen has a heck of a deal on them still. But I really don't want to order them and not be able to fit them. Any other Feedback is more than welcome.

[Mops@Nemesis]

Awesome, thanks Mops! I wonder why these stick out so far on the A6 with 20x10 ET 30 then? I guess it's effectively ET 11.5 in the front with spacers, and ET 25 in the rear. But still, these were like an Inch out in the front.

The wheels I am looking at are Vossen VFS 4s that would come in the offsets I listed up above. Vossen has a heck of a deal on them still. But I really don't want to order them and not be able to fit them. Any other Feedback is more than welcome.

The C7 6 likes ~9.5 ET33, 9 ET28 etc for flush. 10" ET30 with 17.5mm spacers is wildly aggressive. The wheels are going to poke ~20mm. If you went 10", they'd need to be around ET35 with a 255 for good fit that only pokes a little bit if at all.

Hope that helps!

[krwalkman]

The C7 6 likes ~9.5 ET33, 9 ET28 etc for flush. 10" ET30 with 17.5mm spacers is wildly aggressive. The wheels are going to poke ~20mm. If you went 10", they'd need to be around ET35 with a 255 for good fit that only pokes a little bit if at all.

Hope that helps!

Extremely Helpful! I should have just asked you in the first place.

[Mops@Nemesis]

Extremely Helpful! I should have just asked you in the first place.

Glad to help!

20x9 ET25 -



20x9 ET28 -



20x9.5 ET36 -

[gk1]

FWIW after looking at these pics of BBS CH-R 20x9 ET25 with MPSS 265/35R20 I decided ET25 was too much for my taste even though it is commonly recommended.
I guess it's an "eye of the beholder" thing, but I did not want any of the tire to stick out past the top of the fender. It could just be that specific combo of BBS CH-R and MPSS, but I wasn't willing to take that risk when ordering.



Whole set of pics Don't misunderstand, I still think it looks great, but for me the 20x9 ET35 was perfect.
http://robcheng.com/s6bbs/#

[krwalkman]

Those top ones are for sale. I wish I could pick those up, but I'm not a 4k set of wheels kind of guy.

I like the fit of the 20x9 ET28 but 20x9 with Vossen is flat. 20x9.5 is "mid-concave" and I have no idea how mid-concave looks or if they will clear the calipers when I have new pads and rotors without spacers, vossen noted they would need spacers and come with an offset of 40. If I had to space them past the offset they have I would be worried about tire poke and I'm not about to roll my fenders and especially won't get them "pulled" haha.

Looking at the 20x9.5 ET 36 is looks like those could come out quite a bit still and stay tucked. So maybe a 10mm spacer with an ET of 40 would work.

[krwalkman]

FWIW after looking at these pics of BBS CH-R 20x9 ET25 with MPSS 265/35R20 I decided ET25 was too much for my taste even though it is commonly recommended.
I guess it's an "eye of the beholder" thing, but I did not want any of the tire to stick out past the top of the fender. It could just be that specific combo of BBS CH-R and MPSS, but I wasn't willing to take that risk when ordering.

Whole set of pics Don't misunderstand, I still think it looks great, but for me the 20x9 ET35 was perfect.
http://robcheng.com/s6bbs/#

I think that is about the limit of what I would like, Greg. I am just chasing the concave look. and getting a set of wheels in a color I want Vs. powder coating mine means I am essentially getting a set of wheels for 600 bucks or so.

[Outie Essex]

I think that is about the limit of what I would like, Greg. I am just chasing the concave look. and getting a set of wheels in a color I want Vs. powder coating mine means I am essentially getting a set of wheels for 600 bucks or so.

You're welcome for the hookup!

- - - Updated - - -

Also if anyone else is interested in Vossens for $1200/set, just ask Kyle or myself for the contact info.

[krwalkman]

You're welcome for the hookup!

- - - Updated - - -

Also if anyone else is interested in Vossens for $1200/set, just ask Kyle or myself for the contact info.

Haha thanks Steve! I just need to pick a color now and determine what size spacers. I just asked Vossen. Thankfully Mops let me know that they should have all that kind of information, or at least easy access to it.

[nthusiastt]

Suspension coming soon.

265/35 Pilot Sports

This is stock ride height obviously.


20x10.5 +42 offset, deep concave with a 5mm spacer front and rear. You need the 5mm spacer on the front or it will hit your uprights and that's butting it really closely. Rear, I could probably go without the spacer and I might in the near future.

[Outie Essex]

That VFS-4 really is a nice looking wheel!

[krwalkman]

Suspension coming soon.

265/35 Pilot Sports

This is stock ride height obviously.


20x10.5 +42 offset, deep concave with a 5mm spacer front and rear. You need the 5mm spacer on the front or it will hit your uprights and that's butting it really closely. Rear, I could probably go without the spacer and I might in the near future.

Wow! I cannot believe that fit. Can you tell me that if you got new brake pads and rotors they would fit? They really dont Poke too much but that tire is pretty darn stretched. Those are VFS4s too huh? That's what I am looking at.

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[DeRico]

The C7 6 likes ~9.5 ET33, 9 ET28 etc for flush. 10" ET30 with 17.5mm spacers is wildly aggressive. The wheels are going to poke ~20mm. If you went 10", they'd need to be around ET35 with a 255 for good fit that only pokes a little bit if at all.

Hope that helps!

So would 20x10.5's ET30 would need 5mm spacers to clear?

[nthusiastt]

So would 20x10.5's ET30 would need 5mm spacers to clear?

I don't think he's talking about clearance there but just where the wheel fits against the fender.

This is a good site to estimate how a wheel and tire combination might fit.

Input the wheel offset setup that you see on here and then input the wheel and tire setup you're thinking to see about how it might compare. Then look back at the pictures and try to imagine what it may look like pushed out or pulled in. The closest you can get on the inside front is about a 20x10.5 37 offset with a stretched 265/35. You might be able to go in another mm if you stretch a tire badly but you're really pushing it. On the rear I think a 20x10.5 40mm is about as close to the inside as you want to go. You can probably go wider on the tire, maybe even a 285 depending on which tire you choose.

The other variable that you need to confirm with the wheel manufacture is the spoke contour to ensure it clears your brakes. If you're A6, you should be good while S6 has more aggressive brakes and clearance can be problematic for some concave or low disk flat face wheels.

[nthusiastt]

20x10.5 front and rear +42 with 5mm spacers

[pootskoot]

20x10.5 front and rear +42 with 5mm spacers

What wheels are those?

[nthusiastt]

https://vossenwheels.com/wheel/vfs-4/

Vossen VFS-4 but they're discontinued

Couple more pics:

[SmartHomeMatt]

So I was gifted some rotiform 21x10.5 ET 35 wrapped in 275/30/21 for my A6. I'm wondering about the fit. Did you need spacers at all or any adjustments for rubbing anywhere? I was wondering if the 275 tire would be a good fit or not. Is the 265 a better choice does it stretch a little bit?

[Gravy Train]

I think that is about the limit of what I would like, Greg. I am just chasing the concave look.

That's a lost cause with the geometry and fender depth of the 6. Wheel makers generally produce spoke castings or mill designs along three concave profiles. A half inch of barrel width won't make a shit within the same spoke geometry-- that's all done on the back pad of the wheel. If the car is lowered, you start to run out of fender room beyond a 265mm wide tire, and Continentials and Michelins have far wider, and more squared tread sections than Pirellis.

To me, ideal tire fitment should come first, then work the wheel specs around what tucks and drives properly. A 9.5" barrel might work for a 275 or 285 tire, but it gets dicey and too close to the fender line for my taste. Anything more is just added rotational mass.

[nthusiastt]

^Not true. You can get a deep concave profile on the 6 with an a6 caliper but not the s6 front caliper. Worst case, you stagger your spoke profile for mid concave front and deep concave rear if you have the s6. I know this because I'm running a deep profile from vossen but not the SD or super deep profile.

Here, I went and took a pic from their site:

[MTV10]

Question for the wheel fitment gurus....

Test fitted some wheels and loved the look. My only concern is caliper clearance after brake pad change.... From my understanding, only the piston inside moves when swapping to new, thicker pads. But a mechanic friend of mine said it could push out the caliper a few mm, resulting in your wheels no longer fitting post brake pad change. I have maybe 4-5mm of clearance up front.

Wheel specs
Rotiform SJC
20x9.5 ET33
10mm spacer front
255/30R20 tire... I will be running a 255/35R20

Car is in show mode in these pics (55mm drop)

[MTV10]

So I was gifted some rotiform 21x10.5 ET 35 wrapped in 275/30/21 for my A6. I'm wondering about the fit. Did you need spacers at all or any adjustments for rubbing anywhere? I was wondering if the 275 tire would be a good fit or not. Is the 265 a better choice does it stretch a little bit?

That will be tight.

A 10.5'' wheel with ET35 will be equivalent to a 9.5'' wheel at ET23 from my calculations... meaning they should fit but depending on ride height those tires may not work.

[nthusiastt]

Question for the wheel fitment gurus....

Test fitted some wheels and loved the look. My only concern is caliper clearance after brake pad change.... From my understanding, only the piston inside moves when swapping to new, thicker pads. But a mechanic friend of mine said it could push out the caliper a few mm, resulting in your wheels no longer fitting post brake pad change. I have maybe 4-5mm of clearance up front.

pad change will not adjust caliper clearance on a monobloc caliper. I'm pretty sure S6 calipers are monobloc.

[nthusiastt]

So I was gifted some rotiform 21x10.5 ET 35 wrapped in 275/30/21 for my A6. I'm wondering about the fit. Did you need spacers at all or any adjustments for rubbing anywhere? I was wondering if the 275 tire would be a good fit or not. Is the 265 a better choice does it stretch a little bit?

Can almost guarantee you'll rub the front inner upright. Mine are 20x10.5 +42 with a 5mm spacer on 265/30 pilot sports and I'm a paper distance away on the front. Not all tire contact patches are the same mm. Pilot sports run wide so if you're running nankang or something, you might clear but it's a crap shoot.

[MTV10]

pad change will not adjust caliper clearance on a monobloc caliper. I'm pretty sure S6 calipers are monobloc.

Yes yes they are monobloc in the front. So I'll be good.

[SmartHomeMatt]

Okay thanks. I'm still at stock ride height right now. I'll just have to test fit them and see. My main worry was the tire height

[mrdouble99]

Yes yes they are monobloc in the front. So I'll be good.

Don't worry, Caliper will be at the exact same place, even with new pads

[MTV10]

Calling all wheel fitment gurus! Anybody have experience with HRE FF01's?

Specs:

HRE FF01
20x10.5
ET35
275/30R20 Continental DWS


Wondering if they will clear front caliper, and if they do, will it clear the front uprights??

[nthusiastt]

Probably be alright but you'll need to space the front to clear the upright. It'll likely poke. The FF01 isn't to deep a concave so you should be fine but knowing for certain requires checking with HRE and providing a brake template. Only they will know if the rake of the spoke will cause you problems.

[nishlija]

Hello guys,

Nice to meet you all.

I am driving Audi A6 C7 2012 2.0 TDI as daily driver, I am thinking about replacing my rims so I have a nice offer but dimensions are different.
Have anyone tried to fit 235/35/R19 which is 8.5j et43 on this type of car? And if it possible/impossible can you give me the explanation how/why, just to understand for the future and not bother you anymore ^^

[krwalkman]

Hello guys,

Nice to meet you all.

I am driving Audi A6 C7 2012 2.0 TDI as daily driver, I am thinking about replacing my rims so I have a nice offer but dimensions are different.
Have anyone tried to fit 235/35/R19 which is 8.5j et43 on this type of car? And if it possible/impossible can you give me the explanation how/why, just to understand for the future and not bother you anymore ^^

that size would fit, but it would look small. The Diameter of the tires would be pretty significantly different. My A6 came with 255 35 R20 on a 20x8 wheel. The diameter from the factory is 27 inches. If you're in Serbia I assume you do not use inches so its 68.6 cm. The size wheel/tire combo you are looking at would have a diameter of 25.5inches or 64.8 cm.

I assume our factory wheel setups are similar in diameter so you would lose some size. It will fit, but I feel it would look small in the wheel well.

You can use this website to compare tire sizes and see how it would affect the overall diameter. See what tires you have now and use that as a comparison:
https://tiresize.com/calculator/