NEW Surly Cogs Track Cog Surly Track Cog 1/8'' X 14t Silver brand_zipp Cassidy is resolute when flying

Cassidy is resolute when flying down rocky

Steerer Tube Length (mm): 264

Multizone construction provides breathability and protection where needed without added bulk

Mineral oil will not absorb water from the air

Includes: BL-M6100(L)

NEW Surly Cogs Track Cog Surly Track Cog 1/8'' X 14t Silver brand_zipp Cassidy is resolute when flyingSurly 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: 14