is there another way to figure out the ratio of the rear with out pulling the cover off. ex some formula what I'm thinking is if you take the tire size, ratio of the gear your in, speed and rpm at that speed wile in that gear and do something with the tire size it should give you the tire size. i loved math in school and hated spelling lol but the teacher would give us formulas to figure out problems and what did i do i wouldn't pay attention to what he said make my own and figure out the problem my way. don't know if that was me being smart or rebellious
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