NEW Surly Cogs Track Cog Surly Track Cog 1/8'' X 15t Silver Type_Pedals 43cm 4'10" - 5'3"

43cm 4'10" - 5'3"

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

Anything Cradle Arms are compatible with 35

Insulated main compartment with molded EVA foam sides

NEW Surly Cogs Track Cog Surly Track Cog 1/8'' X 15t Silver Type_Pedals 43cm 4'10" - 5'3"Surly 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