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  • ACS ACS  1/8" Single Maindrive  Freewheel

ACS 1/8" Single Maindrive Freewheel

SKU: 63630-1000
Excl. tax

Main Drive "Reliable Replacement" freewheels are similar to Original Equipment on most new BMX, fixie, and other single speed bicycles.

In stock (Delivery timeframe:In Store Pick Up)


  • Chrome-plated steel construction with a durable 3-pawl mechanism for engagement every 12 degrees and a stronger hold
  • Compatible with 1/8" chains only
  • An affordable and reliable option when replacing any old or worn-out freewheels.
  • Standard ISO freewheel thread only / 1.375" x 24tpi

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