The distance from the center of the rim to the inside bolt surface. The bigger the offset the farther the tire sticks out. You can fix too little offset by adding spacers you can't fix to much offset. The second possibility is tire size.
Here is a link
http://www.1010tires.com/Tools/Wheel-Offset-Calculator
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2003 Black 986. modified for Advanced level HPDE and open track days.
* 3.6L LN block, 06 heads, Carrillo H rods, IDP with 987 intake, Oil mods, LN IMS. * Spec II Clutch, 3.2L S Spec P-P FW. * D2 shocks, GT3 arms & and links, Spacers front and rear * Weight reduced, No carpet, AC deleted, Remote PS pump, PS pump deleted. Recaro Pole position seats, Brey crouse ext. 5 point harness, NHP sport exhaust
Last edited by jsceash; 05-21-2014 at 05:33 AM.
Reason: Added a link
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