PyrPatriot
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There are 63360 inches in a mile. The circumference of a circle/tire is Diameter multiplied by Pie (3.14159265...). Revolutions per mile is thus 63360/(PIE x Diameter). This becomes 609 = 63360/(3.14159265 x Diameter). Solving for the Diameter we get Diameter = 63360/(3.14159265 x 609), which yields 33.117 inches. Thus your 35” tire is actually 33”. Even accounting for a manufacture’s website’s listing that the overall diameter is something like 34.8 inches, you are leaving customers 1.7” short of tire diameter.
For example: Falken’s 255/75/17 calculate to be 31.2”, but they report 32.3”. Similarly Falkens 35/12.5/17 calculate to be 33.12” while reporting to be 34.8” (close to 35 ok). To get to 35” you have to go to 37” tires
For example: Falken’s 255/75/17 calculate to be 31.2”, but they report 32.3”. Similarly Falkens 35/12.5/17 calculate to be 33.12” while reporting to be 34.8” (close to 35 ok). To get to 35” you have to go to 37” tires
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