Surly Track Cog 1/8'' X 18t Silver Model=ZipLock Combo Lock }SRAM 44 Tooth 107mm BCD

}SRAM 44 Tooth 107mm BCD x 4-Bolt 1x12-Speed X-Sync Chainring Polar Gray

Model 1817 Cycling Gloves Color Black Size XL Finger Short

Forged aluminum mounts

}RaceFace Turbine R 35 Stem - 32mm 35mm Clamp +/-0 1 1/8" Turquoise

Color Black/Tan Flat Protection Tread and Sidewall TPI 60 Weight 472 Defined Color Black ISO Width (mm) 40 ISO Diameter 622 / Road / 29" Tire Intended Use Gravel Tire Diameter 700c Tire Bead Folding Labeled Size 700 x 40 Tire Type Tubeless Ready Clincher

Surly Track Cog 1/8'' X 18t Silver Model=ZipLock Combo Lock }SRAM 44 Tooth 107mm BCDSurly 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''