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      09-15-2008, 05:15 PM   #2
ben@tirerack
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Drives: 740i
Join Date: Mar 2008
Location: South Bend, IN

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275/30R20 on the back would reduce the height and width a little bit, but the bigger issue here is the 20" wheels. Before you worry about the effect of a fraction of an inch diameter on acceleration, worry about the weight and rotational inertia of your 20's.
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