Actually putting larger cogs on the hub lowers the gear, smaller one raises it .. 3 spline cogs are made from 13-22t.

a 110 BCD crank would start at 34t and go upward, a 130CD road style crank its 38t, 39 if its a Campag 135 bcd style/type .



how much tooth = Math ... did you learn about the ratios calculation math? No? there is apps for that written by people who do.