Surly Track Cog 3/32'' X 17t Silver MFPN=BC-0001 Fast rolling thanks to the

Fast rolling thanks to the combination of the new Tubeless Ready design and Michelin GUM-X compound in comparison to the Michelin PRO4 Endurance

Color Black Range 10-42 Cassette Cogs 10-12-14-16-18-21-24-28-32-36-42 Cassette Body Type SRAM XD 11/12 Speed Drivetrain Speeds 11 Weight 393 Defined Color Black keyword search gx

in a secure out-of-the-way location with the EnCase® System

RS PROLINK is a favorite among endurance trainers

A rear rack mounted pannier-style basket that is perfect for shopping trips and can fold away when not in use

Surly Track Cog 3/32'' X 17t Silver MFPN=BC-0001 Fast rolling thanks to theSurly 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 17 Size 3 32''