NEW Surly Cogs Track Cog Surly Track Cog 1/8'' X 19t Silver brand_dtswiss Upcycled Bicycle Inner Tubes /

Upcycled Bicycle Inner Tubes / Upcycled Nylon Fabric

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and feature simple set up and maintenance

Chromoly spindle and stamped steel wings

NEW Surly Cogs Track Cog Surly Track Cog 1/8'' X 19t Silver brand_dtswiss Upcycled Bicycle Inner Tubes /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: 19