NEW Surly Cogs Track Cog Surly Track Cog 3/32'' X 19t Silver frontder_clamp-31-8mm 6-bolt adaptor

6-bolt adaptor

Built with versatility in mind

Directional ramped center knobs provide low rolling resistance

SKF damper cartridge seals

comes fully assembled

NEW Surly Cogs Track Cog Surly Track Cog 3/32'' X 19t Silver frontder_clamp-31-8mm 6-bolt adaptorSurly 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