Re: Motorized Bicycle Gear Calculator
Ahhh! What am I doing wrong? I am trying to calculate final drive for a mid-drive (jackshaft) setup, to select the best gears on the clutch, jackshaft and rear wheel.
The problem is (and I obviously must be doing some wrong) that for instance, if I change the gears on the jackshaft around (i.e the input is a 13 tooth, output is a 18 tooth; then swap them round to a 18 input, 13 output) the resultant speed remains the same! Its like I can't affect the final drive ratio at all?? WTH?