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So a dyno on a 17t will show more HP than a dyno on a 19T? I believe the answer to that would be "No".



I think you've missed Ian's point that a multi-speed transmission multiplies torque, and there is a mechanical difference between a 17T front and a 19T front...just do the math with whatever rear sprocket you want to use to calculate the difference in final drive ratio between the two.