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This
calculator calculates speedometer error and tire sizes based on theoretical
tire dimensions as given by the standard US tire system (i.e. 205/45-ZR16)
and assumes a new tire where the numbers on the tire accurately represent
the dimensions. The calculator DOES NOT take into effect any curvature
effects of a tire when placed on a rim it is not designed for. For example,
a 205 width tire mounted on a 15" diameter, 5" wide wheel will bulge since
the tire is designed to be flush with a 7-7.5" wide wheel. Naturally the
tire will balloon outward from the sides, which is not taken into consideration
(calculating curvature effects requires some heavy duty calculus.) This
calculator gives the user a general idea of wheel effects. Palo Alto Speedometer
is not responsible for any miscalculations of this calculator or any errors
as a result of curvature effects of the tire. You will need a Javascript-Capable
browser to use this calculator. If the form does not work, or you know
you do not have a Javascript Capable browser, please download Navigator
4.0 free at Netscape Corporation.
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