Q: I recently purchased your software program, Tire Temp. Analyzer. I unfortunately don't understand your term Roll out temp, Hot/Cold. Could you please explain?

A: Before your race car goes on the track (or at the shop) the tires are "Cold." Once the car is at speed for a few laps on the track the tires warm up. As soon as you stop the tires are still "Hot." Typically, there is a pressure difference in the tires between the "Hot" and "Cold" conditions. "Roll out" is the circumference of the tire and measured by pulling a tape measure all the way around the tire. This measurement can change from cold to hot conditions just like the pressure.

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