NEW Surly Cogs Track Cog Surly Track Cog 1/8'' X 14t Silver brand_zipp resilient fiberglass-charged polyamide central tube

resilient fiberglass-charged polyamide central tube from the harmful ingress of water

external rebound

serrated knife

Cassidy is resolute when flying down rocky

Includes: BL-M6100(L)

NEW Surly Cogs Track Cog Surly Track Cog 1/8'' X 14t Silver brand_zipp resilient fiberglass-charged polyamide central tubeSurly 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