Surly Track Cog 1/8'' X 18t Silver Force }SRAM/TruVativ GXP 83mm Bottom Bracket

}SRAM/TruVativ GXP 83mm Bottom Bracket

Primary Color White Gender Men Cleat Type SPD-SL/KEO Shoe size 43 Closure Double SLW3 Dial Color White/Bronze

}Park TK-4 Tool Kaddie with Stand Mount

Legendary lifetime replacement warranty Steerer Tube Material Steel Steer Tube Diameter 1-1/8" Top Cap 24x1

Surly Track Cog 1/8'' X 18t Silver Force }SRAM/TruVativ GXP 83mm Bottom BracketSurly 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''