
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
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1.375" x 24 tpi
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- Cassette Body Type: Threaded Track
- Chain Compatibility: 3/32" , 9-Speed
- Teeth (teeth): 19 teeth
Velo Mine customer service phone 217.679.2356 - Text: 217.827.1173 - Email: ben@velomine.com
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