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      07-12-2012, 12:56 PM   #2
Drives: 2008 e92 335xi
Join Date: Sep 2011
Location: Minneapolis

Posts: 466
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Depends on the rolling diameter of the tires. The general rule of thumb is to stay within 1%, but I would feel better if the revs per mile is 3 or less. You'll have to do some math to figure it out.
zipstic is offline   United_States
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