Surly Track Cog 3/32'' X 15t Silver Fixed Gear

Surly track cogs are threaded the same as a BMX freewheel (1.375 x 24 tpi right-hand threads). This means that they will fit on single-speed rear hubs, as well as BMX freewheel hubs, but this application is not recommended. Track cogs are meant to work on track hubs only.

• 415 hardened chromoly steel
• 1.375" x 24 tpi
  
  • • Cassette Body Type: Threaded Track
    • Chain Compatibility: 3/32" , 9-Speed
    • Teeth (teeth): 15 teeth