I must be suffering from a severe case of brain fade or something this morning, because after I posted the above I got to thinking, did I actually take the measurement at the absolute bottom of the rim?
After rechecking, I found that I had not. The measurement on the 18" wheel should be 2 1/2", yielding a more believable 1/4" difference.
Sorry for the error.
Hamstur was right on the button.
Last edited by Ronzi; 06-01-2007 at 08:14 AM.
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