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      01-24-2013, 03:45 AM   #21
simianspeedster
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Drives: 2013 128i Coupe Manual
Join Date: Feb 2010
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What's up Mikal?

Could you please elaborate on your comment about 17s helping with gearing and making the car feel quicker?

I recognize that a lighter wheel/tire combo will reduce the effort required to get rolling and the reduced unsprung mass has many benefits, but I'm not clear how wheel size affects gearing and quickness.

Assuming a constant tire diameter and combined wheel/tire weight, is there some other performance advantage to 17" rims that I'm missing?

Regarding the suspension, I'm planning to order the "factory" Performance Suspension (which I understand is installed at the port) because I want to keep it simple and keep BMW on the hook for everything.

Last edited by simianspeedster; 01-24-2013 at 03:53 AM.