Congrats on your new 227M's! I get a lot of compliments on mine. The tire size is 275/40R20 front and 315/35R20 rear.

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2009 E70 X5 xDrive 48i M Sport
2008 E92 M3 Coupe 6MT
2001 E46 M3 - Sold | 1997 E36 M3 - Sold | BMW CCA member