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      12-21-2012, 03:46 PM   #11
WarrantyTracker
Track? What Track? I was just riding along . . .
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Drives: Alpine White E92 M3
Join Date: Apr 2012
Location: An Undisclosed Location

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On the stock 18" wheels I am running 235/40/R18 front and 255/40/R18 rear. Dunlop Winterport 3Ds. Fits fine. I think that's 10 down from stock summer tire width front and rear. A little narrower, supposedly an advantage in heavier snows, but I was afraid to go down to 245 on the rear. It might be fine, I just didn't feel like stretching it.