Surly Track Cog 3/32'' X 18t Silver Fits Brand-Commencal 100% disc brake compatible

100% disc brake compatible

386 EVO Thread Together Bottom Bracket

5-Year warranty

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Surly Track Cog 3/32'' X 18t Silver Fits Brand-Commencal 100% disc brake compatibleSurly Track Cog 3 32'' X 18t Silver. 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 TECH SPECS Tooth Count 18