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      11-21-2020, 11:42 AM   #1
bensonline
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Recommended tire size for track use

Hey everyone, I have a 135i with a full 1m front clip and have the n5tuner rear flares (read lots of room in rear). Just installed all of it.... I am wondering about tire height and fitment. I have a squared set of apex’s 18x10 et25. I was planning on 285/35/18 rs4’s squared. Just having second thoughts if those are too tall or would have any other fitment issues. I run -3.5 camber up front on TcKline coilovers, with all the m3 bits. Any help would be appreciated.
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      11-21-2020, 01:28 PM   #2
CarJunkie
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My track wheels are 18x9.5 et22.
I run 275/35/18 square with -2.7 camber in front and it rubs in front at the top with full compression on both sides. The right front also rubs at the rear of the wheel well on passenger side only with full turn to right.

I would be VERY surprised if you can run 286/35. Did you mean 285/30/18?
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      11-23-2020, 06:04 PM   #3
nachob
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I read it now, lots of room, sorry about that but still be aware of the offset differences while you have more room, the geometry and hubs use 135i offsets and centerline. Too much offset can make affect the steering effort. Anyway, best wishes, and sorry for missing the fender part!
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      12-03-2020, 05:43 PM   #4
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265/35/18 and 295/30/18 combo is very nice (similar to e92 m3). Cup2s, toyo R888Rs, or Dunlop direzzas dz03g
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      12-04-2020, 08:19 PM   #5
bensonline
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Quote:
Originally Posted by CarJunkie View Post
My track wheels are 18x9.5 et22.
I run 275/35/18 square with -2.7 camber in front and it rubs in front at the top with full compression on both sides. The right front also rubs at the rear of the wheel well on passenger side only with full turn to right.

I would be VERY surprised if you can run 286/35. Did you mean 285/30/18?
Rs4’s only come in 285/35/18 no 30 sidewall option. So yes planning on 285 35 18
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      12-04-2020, 08:22 PM   #6
bensonline
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Quote:
Originally Posted by nachob View Post
I read it now, lots of room, sorry about that but still be aware of the offset differences while you have more room, the geometry and hubs use 135i offsets and centerline. Too much offset can make affect the steering effort. Anyway, best wishes, and sorry for missing the fender part!
Good point! I will keep an eye on that
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