Thread: Tire size help
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Old Tue, March 31st, 2009, 03:11 PM
pickemuptruck13 pickemuptruck13 is offline
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Default Tire size help

Hi guys i was wondering if someone could help me with tire size calculations? Before anyone say it i used the formula that came with the book but my speed still seems to be off about 5 miles and it seems it gets worse the faster i go i am using a gps for the speed comparison. My tire size is 365/60/r20 i also have 456 gears but i put that in so it shouldn't affect what size i put the tires. Thanks for all your help in advance