I spoke with Scott Harter about measuring tire sizes, by not going on a measurement of a previous set. In auto racing I use a Tire Stagger Tape measure. You can find them at summit.com and jegs.com for around $10. Measure circumfrence and calculate the diameter and radius. ________________________ Rebco Tire Stagger Tape Measure Easy to use mini tape measure makes measuring tire circumference a one-man job. 1/4'' wide x 10'. Accurate to 1/32''. 811-300-8910 Tape Measure, 10-ft $ 9.99 _________________________________ http://www.jegs.com/cgi-bin/ncommerce3/ProductDisplay?prrfnbr=3754&prmenbr=361
