Box Two Freewheel

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Box Two™ Freewheels combine durability with lightning-fast engagement. They feature nine, super durable pawls and are available in one of three choices -- 16, 17 or 18 teeth.

To install, use the Park Tools™ FR-6 or other installation tool designed for single speed freewheels with four notches that are approximately 32mm across measured inside to inside and 40mm outside to outside.


  • 1/8th or 3/32 Chain Compatible
  • ED Black Protection
  • 108 Points of Engagement
  • 9 Pawls Engagement System
  • Heat-Treated Chromoly