Durable, strong, and aggressive style. Designed for freeriders or downhillers that do not have an unlimited sponsorship budget.

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Durable, strong, and aggressive style. Designed for freeriders or downhillers that do not have an unlimited sponsorship budget.

  • 104mm BCD single speed rings designed for 10 speed drivetrains
  • Includes BSA 68/73mm bottom bracket
  • Shimano Reference Number: FC-M640
  • 104mm BCD single speed rings designed for 10 speed drivetrains
  • Includes BSA 68/73mm bottom bracket
  • Shimano Reference Number: FC-M640

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