Surly Track Cog 1/8'' X 18t Silver CheckoutTitle=Schwalbe Green Marathon Tire - 20 x 1.50 14 mm diameter hardened steel

14 mm diameter hardened steel shackle

}SRAM Rival AXS Crankset with Quarq Power Meter - 170mm 12-Speed 46/33t Yaw 107 BCD DUB Spindle Interface Black D1

allowing you to focus solely on your workout

Rear tire with 3D multi-angle knobs designed for cornering traction

Features include a rear light loop

Surly Track Cog 1/8'' X 18t Silver CheckoutTitle=Schwalbe Green Marathon Tire - 20 x 1.50 14 mm diameter hardened steelSurly 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''