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Bike Gear Calculator
Compare gear inches, rollout, and gain ratio
📖 Bike Gear Calculator
Gear inches = (Wheel Diameter × Chainring Teeth) ÷ Cog Teeth. It helps compare setups across wheel sizes. Rollout converts to meters traveled per pedal rev.
📊 Result
💡 Tips & Information
- Use gear inches to compare fixed-gear setups across wheel sizes.
- Gain ratio accounts for crank length differences.
- Track rollout for track-cycling gear checks.