I read on here somewhere that BMW states that a max difference of just 1% in tire diameter is allowable. When you do the math, that can be difficult. ie. 25.6 in. front and 25.7 rear is ok, but a 25.8 rear is greater than a 1% difference. Just curious, since I just got my first xi, is anyone nunning a slightly larger than 1% difference and have you experienced any trouble???
Originally Posted by E. Staggered
You really can't play around with the xdrive too much when it comes to tire sizes, the closer in diameter the better and it's always good to have a lower profile just in case you decide to do a drop.