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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > Wheels and Tires -- Sponsored by The Tire Rack > 235/40 + 265/35 on X-drive??
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      03-04-2021, 10:01 AM   #1
Juice247
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235/40 + 265/35 on X-drive??

Does this geometry work for X-drive cars?

It is the same 0.4% diameter difference as stock with a +3 revs per mile vs +1 rev per mile on the stock sizing.
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      03-04-2021, 10:34 AM   #2
wdeerfield
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I assume you are looking at 19" rims? I run those sizes for my summer wheels https://f30.bimmerpost.com/forums/sh...25&postcount=1
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      03-04-2021, 10:51 AM   #3
Juice247
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Thanks and beautiful car!!!

Yeah, it's on the 19s. Any issues at all you can feel? The only difference I can see are the rpm, but that can be a rounding error on tread depth and inflation.
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      03-04-2021, 03:24 PM   #4
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Yes. Al things considered, it's possibly even the best compromise between grip, comfort, handling and rolling resistance; right in the middle between 225/40+255/35 and 245/40+275/35.
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      03-05-2021, 11:50 PM   #5
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Quote:
Originally Posted by Juice247 View Post
Thanks and beautiful car!!!

Yeah, it's on the 19s. Any issues at all you can feel? The only difference I can see are the rpm, but that can be a rounding error on tread depth and inflation.
Wait, what 19's, though? It's my understanding that no OEM 19's are wide enough for 265 mm tires.
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      03-06-2021, 11:19 AM   #6
Juice247
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Quote:
Originally Posted by e_b_d_i View Post
Wait, what 19's, though? It's my understanding that no OEM 19's are wide enough for 265 mm tires.
I do have the stock M 8"/8.5" setup. I questioned this myself and ended up just sticking to stock sizes. If I ever change rims, I'll widen them a bit
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