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I don't even need to read it Fred... The tire rolls on it's circumference.. This does not change regardless of the abount of air in the tire.. If the tire is low on air the tire radius from the axle down will be smaller than the radius from the axel UP. From the weight of the vehicle..
However the circumference don't change.
Big JIm <img src="/forums/images/graemlins/pfft.gif" alt="" />


So you're stating, based on the example I gave above, that if one tire were to be inflated to say 5PSI and the other inflated to say 40PSI then they would BOTH make the same amount revolutions if they both traveled the same distance in a straight line <img src="/forums/images/graemlins/rolleyes.gif" alt="" />??? Then what would be the purpose of keeping the same tire pressure in both tires on the same axle if the distance they traveled was based on CIRCUMFERENCE and not ROLLING RADIUS <img src="/forums/images/graemlins/confused.gif" alt="" />???

Fred R.

97 ZJ, 5" Long Arm Lift, Beadlocked 35's, 231/D300 Doubler, Locked Front & Rear (Narrowed HP D44 & F8.8), ARB Bull Bar & 9K winch, 1-Ton Hydro-assist steering, "Custom" body work and some other goodies... PICS