Originally Posted by azn_ignite
i thought 235/35/19 is closer to 275/30/19, correct me if i'm wrong
You're correct, but running a 275 rear starts to get a little tricky unless you get the offset of your wheels just about perfect. Otherwise you have to roll your fenders. That's why most folks go with a 265 rear, which works just fine with a 235 front, as it's still less than the 1% over difference (front to rear) BMW recommends.