Surly Track Cog 1/8'' X 16t Silver CheckoutSpec= SID SL C1 Ultimate - Blue - 100-110mm 8mm X4 stem

8mm X4 stem

}SRAM DUB Wide PressFit30 Bottom Bracket - PF30 73mm Road Black

formerly called Master Blaster

}Industry Nine Torch Road Centerlock Front Axle End Cap Conversion Kit: Converts to 12mm Thru Axle

Great for MTB riders wanting a more upright riding position

Surly Track Cog 1/8'' X 16t Silver CheckoutSpec= SID SL C1 Ultimate - Blue - 100-110mm 8mm X4 stemSurly 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 16 Size 1 8''