Thread: tire size?
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Old Wed, July 29th, 2009, 01:12 AM
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As Jack said... technically a 35" tire would be 2792mm. Compensating for squish, we have found that 2762 works really well for most 35" tires. Of course, the tire manufacturer's specs are the best way to go. If they have a rev/mile value for your tire, that that number and use this formula...

1609344 / Rev per Mile = Circumference in mm

Keep in mind that air pressure, tread wear, and ambient temperature can affect tire circumference and revs per mile. If all else fails, GPS it and make minor adjustments until it's right.
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