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6mmx24tpi Width 68/73mm Color Silver Standard DUB
elastic jersey to ensure great fit
Machined aluminum cup
Double-density padding for a softer tip for ease of movement with high-density rear for the stability while pedalling
Surly Track Cog 1/8'' X 18t Silver Model-Box Two 6mmx24tpi Width 68/73mm Color SilverSurly 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 18 Size 1 8''
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