Quote:
Originally posted by Jrscb16A2
um...you are forgetting a 16 inch wheel with a 50 series tire is the same diameter as a 17 inch wheel with a 40 series tire....therefor the lighter of the two is going to be better for the car...I didnt forget rotating mass....
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Not true. A large portion of the mass of the wheel is located on the outer edge. This being said, a larger diameter wheel combo that weighs the same as a smaller combo will perform worse. The difference might not be huge, but its there.