[Fre_535Xd_F11]

Hi,

I have bought a set of Stance wheels for my summer setup.

Wheels are 9x20" front and 10,5x20" rear.

BMW sells there staggered wheels with 275/30R20 and 245/35R20 tyres. These are runflat tyres.

Now if i calculate the difference in circumference in the 275-245, its -0,96%.

If i would use a 285 tire in the rear the difference is only -0,07% , so this would suit better, especialy on Xdrive.

Now here what the problem is, I can not find a RFT tire in the 285 size.

I find it strange that BMW uses 275 in the rears since 285 suits better.

What do you guys run on an xdrive? I've read some horror stories about Xdrive failures with the 275-245 setup in Germany and BMW avoiding warranty because of aftermarket wheels!!

What do you advice?

Thanks,

Fre