NEW Surly Cogs Track Cog Surly Track Cog 3/32'' X 19t Silver frontder_clamp-31-8mm Directional ramped center knobs provide

Directional ramped center knobs provide low rolling resistance

240 hub with Ratchet EXP driver

comes fully assembled

Built with versatility in mind

Be it the long tour

NEW Surly Cogs Track Cog Surly Track Cog 3/32'' X 19t Silver frontder_clamp-31-8mm Directional ramped center knobs provideSurly 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: 19