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      03-31-2008, 04:28 PM   #3
runnerx
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Drives: 06 M roadster; 06 330i 6spd
Join Date: Apr 2007
Location: Bay Area, California

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Quote:
Originally Posted by vachss View Post
Why go with 40's instead of the stock 35's in the rear. That'll add about an inch of diameter. While I suspect that it will fit, your acceleration will suffer by about 4%.

225/45/18(front) and 255/40/18(rear) are stock on the M roady.
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2006 BMW ///M Roadster 6spd manual

2006 BMW 330i 6spd manual - gone
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