This ATV drive chain measurements are:

• Chain Pitch [distance from pin to pin]:  6.35mm (1 4 in)
• Roller diameter: 3.3mm (0.130 in)

• IMPORTANT NOTE: This size chain is the smallest chain we carry for the kids atvs, dirt bikes etc. Mainly used on the smaller frame size 47cc 49c pocket bikes, dirt bikes, electric scooters, mini choppers, etc.

  • 100 Links – 50 inner and 50 outer
  • 25 1 2 inches long
  • No master link

  • Some of the front drive sprockets will have numbers on them which identify exactly what chain number is used.

    The #25 and #25H are interchangeable and will run on the same sprockets. The H means heavy duty and the chain has thicker heavier side plates.

    Other sizes will not interchange with drive sprockets.