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      10-20-2012, 01:59 AM   #5
Vigilante375
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Drives: 2012 AW 6M 135i
Join Date: Sep 2011
Location: WA

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Well remember, for every 10 lbs of rotating mass is .1 off your ET and for every 100 lbs lost as well. The 17" rim should improve your launch over the 18". If rim size didn't matter then I'm sure the pro's would be running 20", but they're not because they weigh to much and make you loss HP and traction off the line.