63in turbo busa 250 hp...215lb rider..mtc lock up....I know gearing depends on a lot of variables but since a gen 1 gear ratio is 2.35..16/39...17/40...18/43...19/45 are all close ratios will the all perform the same......
dont wanna go smaller than a 17t front sprocket on turbo busa gen 1 that is....... i ran 17-42 when i had similiar power and i am 210 suited and worked great for me.....
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Psychobike
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