Chain Length Calculator

DME Racing Chain CalculatorUse the calculator below to determine the correct chain length for your bike’s gearing and wheelbase.

To get started, measure the distance between:

  • The center of the output shaft (front sprocket), and

  • The center of the rear axle

Enter this measurement along with your gearing information to calculate the chain length you’ll need.

ENTER YOUR SPECS:

RESULTS:

Links (even):
Chain length (in):
Chain length (ft):

Adjustment Options (center-distance targets)

Links Chain Length (in) Center (in) Move Axle from input (in)

Notes: Chain links are typically even. “Axle move” shows how far to lengthen (+) or shorten (−) from your entered center distance to make that link count fit exactly. Verify with adjusters near mid-travel.