Chain Length Calculator

Calculate bicycle chain length in links

Note: Links = 2×C + (F/4 + R/4 + 1). C=chainstay(mm), F=big chainring, R=big cog.

Drivetrain

Chainstay Length (mm)

Largest Chainring (teeth)

Largest Cog (teeth)

⚠️ For educational and training purposes only. Consult a coach, physician, or certified trainer before making training or health decisions.

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