Bicycle Chain Length & Drivetrain Capacity Calculator
Precision drivetrain planning. Calculate your required chain links and verify derailleur capacity to ensure smooth, reliable gear shifting.
Component Parameters
Calculation Results
Recommended Chain Length
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Full Links (Total)
Drivetrain Capacity
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Total Teeth Change
Status
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How to Measure
1
Chainstay Length
Measure from the center of the bottom bracket shell to the center of the rear axle using a reliable measuring tape.
2
Tooth Counts
Verify your component markings. Most chainrings and cogs have the size printed directly on the component teeth.
3
Safety Check
Always check your derailleur manual for max capacity specifications. Never bypass safety limits when selecting gears.