NEW Surly Cogs Track Cog Surly Track Cog 3/32'' X 18t Silver Type_Headsets effectively keeping them from being

effectively keeping them from being redistributed on the chain during cleaning

Housing Diameter: 5

Clamp Style Std Rails Color Black Defined Color Black Gender/Age Unisex Length 265 Saddle Cut Out No

- Tread wraps around to the side of the tire a bit which allows for continued traction while turning

Nylon Fabric

NEW Surly Cogs Track Cog Surly Track Cog 3/32'' X 18t Silver Type_Headsets effectively keeping them from beingSurly 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 Photo for color and material reference only Tooth Count: 18