Calculate angle at which pedal will strike the ground

BB length [mm]:
BB height [mm]:
Crank length [mm]:
Crank offset (crank q factor) [mm]:
Pedal width[mm]:
Pedal thickness[mm]:

Pedal strike angle:

Find out which chainring and cog sizes will help you get the ratio you want

Minimum ratio:
Maximum ratio:

Gear	Chainring	Cog

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