BestBikeFit4U calculator
Crank Length Calculator
Get a practical starting point for crank length before you change components.
Output
Component recommendation
Enter your details to generate a first-pass crank-length recommendation.
Next step
Crank length works best when you consider it alongside saddle height, reach, and the rest of the fit.
FAQ
Does a shorter crank always improve comfort?
Not always. Crank length needs to match your inseam, bike category, and position goals rather than following a blanket rule.
Why is MTB crank guidance sometimes shorter?
MTB setups may favor slightly shorter cranks for pedal clearance and terrain control.
Explore more
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