Quote:
Originally Posted by bake
Not the wheels themselves, but the tires sizes mounted are not ideal for X-Drive. The X-Drive system cannot detect differences in wheel width, only rolling diameter. You need to try to minimize any differences in rolling diameter from front to back when going with a staggered setup on an X-Drive. Most with X-Drive opt to go with a front 245/35/20 and rear 285/30/20 to keep the rolling diameters nearly identical.
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I am not sure where you came up with this information??
Numerous F10 and F30 X-drive vehicles are running around with the same exact tires and wheels for several years
The tires 245/35/20 and 275/30/20 are BMW recommended sizes for both RWD and Xdrive vehicles