Originally Posted by zipstic
I’d be leery of running different tire models front and back. Theoretically if you can find tires that have the same revs per mile you could get by without any harm to the xDrive system. The tires will perform differently too fwiw.
The Contis are not run flat. They make the RE050 in both a run flat and non-run flat so you’d have to look more closely at the tire.
Agreed. You can run whatever tires you want, all 4 being different even as long as the revs were the same.
I personally would run 2 different sets, each tire has a different characteristic.
Also with all AWD cars. You cant just replace one or 2 tires without the potential to be out of the RPM range and burn that poor transfer case up.