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.
