1 Inch = 25.4 Millimeters
325/30/19
325(mm)/30(aspect ratio)/19(dia)
325...is the mm
325mm divided by 25.4mm = width of tire in inches. (12.795") ...
give or take for factory fudge numbers....
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Last edited by Rod P; 01-19-2015 at 10:33 AM.
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