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      03-14-2012, 03:34 PM   #19
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Drives: EBII 2014 F31 328xi
Join Date: Sep 2007
Location: Oil Country

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I find my 18" tires on the M3 roll up faster than the the forged Neez 19's and tires.

I think the tire weight and rotational inertia play a big role and 20" tires will be much heavier than 19's. I suspect the 19" wheeled car might be faster on the track. Driving day-day it might not be measurable.

My thoughts only anyhow.
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