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Shimano Nexus 21t Cog

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Product ID: GM040521-25

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keyboard_arrow_right Description

Shimano Nexus 21t Cog

 

  • Shimano Nexus and Alfine cogs will work with either 1/8" or 3/32" chains
  • Fits coaster brake and Internally geared hubs with 3-tab spline pattern drivers

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