15" vs. 17"

[vw1303]

Another two words, moment of inertia. Since the mass of a larger diameter wheel if mostly at the outer edges it takes more force to accelerate it. I went with 15's because most of the time they are lighter than a 17 inch wheel. You can also get a low profile tire in 15 inch too, like 45 and 40 series, but only in europe. Plus if you ran such a low profile on a 15 inch rim your car would be really really low :agree: .