Quote:
Originally Posted by korinfox
From the testing we've done, we find that a good rule of thumb is that the optimal rim is the same size (rounded up to the nearest half-inch or so) as the tread width (not section width!).
This assumes street tires though. If you're running Hoosier R-comps their sidewalls are much stiffer, and you're best off stuffing as much tire onto the rim as you can fit.
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So on my 17x8" wheels, I should be faster with 205s than the 255s I'm running or 245s that others typically run? Like wise, a 225 tire on a 9" wheel?