Sprocket & Gearing Calculator

Calculate changes in gear ratio, theoretical top speed, and chain length.

Current Front Sprocket

Current Rear Sprocket

New Front Sprocket

New Rear Sprocket

Chain size

Gear Ratio

Torque / Acceleration Change-

Theoretical speed at the same rpm-

Chain Length Adjustment

Track your drivetrain wear automatically.

Save this setup to Garagely and get reminded to check tension and replace your chain.

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