Quote:
Originally Posted by MMOTION
Running 275/30/19 rears would make the rolling diameter closer to spec but i don't know if that will make a big difference. However, running 235/35/19 front and 275/30/19 is the best setup which is below 1%.
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+1 275 should be better, but it is still at slightly over 1%. However, there has been no significant support to show what % difference is the "magic number" that will cause problem with xi/xdrive equipped cars.
I do think someone in the forum with a xi/xdrive car who has run 245 and 265 or 275, but I can't remember who.