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      02-10-2013, 02:27 PM   #9
Superfly_M3
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Drives: 2011 M3
Join Date: Sep 2011
Location: Toronto

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The Diameter for 285/30/19 is 25.73"
OEM 265/35/19 is 26.30"

Given the fact that BWM recomends 235/40/18 for winter tires all around (which are 25.40"), 285/30/19 doesn't seem so bad - only 2.2% difference.

Many people are running 285/35/18 which are 25.85"