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Old 11-23-2012, 10:31 PM   #3
Rattlsnak
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Join Date: Nov 2012
Location: ATL
Posts: 7
My Ride: E46 328CI / e36 M3
As far as the offsets, lay them face down and put a straight edge on the wheel lip across the center and use a tape measure to measure the distance from the ruler to the back of the center hub. Once you get that backspacing measurement in inches, you can figure out the offset in mm. by using the width of the rim in inches, converting that to mm., divide by .5, and then convert to mm., and deduct the backspacing measurement.

Last edited by Rattlsnak; 11-23-2012 at 10:33 PM.
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