NEW Surly Cogs Track Cog Surly Track Cog 3/32'' X 17t Silver type_protective-pads-armor Front and rear rack mounts

Front and rear rack mounts

Rear Derailleur: Shimano GRX RD-RX812 Rear Derailleur - 11-Speed

ISO Width (mm): 96

The carbon wheel that helped pioneer the Firecrest rim platform for improved aerodynamics and crosswind stability also features the unspoken durability that has repeatedly won Paris Roubaix and the Tour of Flanders

Tire Diameter: 26" Fat

NEW Surly Cogs Track Cog Surly Track Cog 3/32'' X 17t Silver type_protective-pads-armor Front and rear rack mountsSurly 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: 17