NEW Surly Cogs Track Cog Surly Track Cog 3/32'' X 16t Silver type_brake-levers Super wide 10-42t gear range—a

Super wide 10-42t gear range—a perfect fit for any ride

And we prove it

Resin with Metal Fibers pads are compatible with Resin-Only type rotors as well as standard rotors

Weight: 329

NEW Surly Cogs Track Cog Surly Track Cog 3/32'' X 16t Silver type_brake-levers Super wide 10-42t gear range—aSurly 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: 16