NEW Surly Cogs Track Cog Surly Track Cog 1/8'' X 15t Silver Type_Pedals a blend of 3/2

a blend of 3/2

the longest mountain bike race in the world stretching from Canada to Mexico along the Rockies

DT AeroComp Hybrid straight pulls spokes

Full Insertion Length — 215 mm

NEW Surly Cogs Track Cog Surly Track Cog 1/8'' X 15t Silver Type_Pedals a blend of 3/2Surly 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: 15