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      07-15-2021, 08:50 AM   #1
easty027
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21"Wheel Query

I'm thinking of swapping my 20's for some 21's and wondered if anybody was running a 295/30/21 on the rear, rather than what would be the correct sizing 295/25/21. I just don't like the thought of running a 25 profile tyre and thought the 30 profile would fill the arch a bit more. If it fits?

My car is a non-M f13 Coupe by the way.

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      07-16-2021, 09:44 AM   #2
itzjoker
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Hope this helps:

https://www.willtheyfit.com/index.ph...0-5&offset2=40

This says that your ride height will increase by ~0.58" (and arch gap loss of same amount) going with 30 profile. As far as running into rubbing issues, I can't comment on that, I went with 295/25/21 myself. Other sizes in 21's were difficult to find.

IIRC, the 30 profile is a ratio of the tire width. Being that 295 are wide, going to 30 will be a noticeable increase from 25. I believe 295/25/21 are closest to OEM spec. I would try a 275 or 285 if you want 30.
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