Surly Track Cog 1/8'' X 15t Silver CheckoutTitle=RockShox Deluxe Ultimate RCT Rear Shock - 185 x 52.5mm Includes cables and stationary grips

Includes cables and stationary grips

provides an optimal balance of rolling efficiency and longevity to conquer your next journey

Length 350 Color Black Min Height 70 Weight 295 Travel (mm) 20 Diameter 27

A spacer kit including four 2 mm spacers is available for purchase to further fine tune Q Factor adjustment

Wolf Tooth Centerlock Rotor Lockrings – External Spline secure centerlock rotors on centerlock hubs

Surly Track Cog 1/8'' X 15t Silver CheckoutTitle=RockShox Deluxe Ultimate RCT Rear Shock - 185 x 52.5mm Includes cables and stationary gripsSurly 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 15 Size 1 8''