NEW Surly Cogs Track Cog Surly Track Cog 3/32'' X 15t Silver brand_shimano Cane Creek 40-Series EC (External

Cane Creek 40-Series EC (External Cups) assemblies feature press-in cups with bearings outside the frame

6061-T6 aluminum with incremental adjusting clamp

glueless tire patch kit

ISO Width (mm): 105

Weight: 143

NEW Surly Cogs Track Cog Surly Track Cog 3/32'' X 15t Silver brand_shimano Cane Creek 40-Series EC (ExternalSurly 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