Surly Track Cog (Silver) (Single Speed) (3/32") (20T) - FW2088
Surly Track Cog (Silver) (Single Speed) (3/32") (20T) - FW2088, 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. Features: 415 hardened chromoly steel 1.375" x 24 tpi Photo for color and material reference only Specifications: Cogs: 17T, 20T, 22T Size: 3/32" (Single Speed) Material: Chromoly Color: Silver Weight: TBD