f10 m5 tire size question

[deshu3212015]

Hi guys:
I recently purchased Michelin ps4s tires for f10 m5(LCI) after installation, I noticed that the tire size are different than the factory tire size(265/35/r20, 295/30/r20) My current tire size are front: 275/35/r20, rear: 285/35/20. I just want to know does it have any difference when driving(Turning, breaking, suspension?) Any safety concerns? And the tire is none refundable, it that necessary to switch them to the factory tire size? I don’t go to track, just daily driving, mostly in highway, and the weather in my city is like 60% dry days and 40% raining days. Thank you for your time guys!

[HXS]

Seems like you got OEM sizes for the F90. If that was the shop’s fault, I would fight to give an exchange/return.

Anyhow, for daily driving I think it’s ok. If you’re lowered, you might experience some rubbing in the front. But probably only at full lock, so no big deal.

[M5_Brandoe]

I don’t think there will be any issue if daily driving. I’m lowered on KW v3 and run 275 on the front, the rear is a little narrow but that’s ok for your driving.

On your next change you can just correct the rear.