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Old 12-03-2006, 03:50 PM   #5
NJSPEEDER
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Join Date: Jul 2004
Location: All up in your kool aid!
Posts: 12,235
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example 245/50-15

245 = tread face width in mm
/45 = aspect ratio, sidewall height is 50% of the tread face width
-15 = rim size in inches, 15inch rim
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