Surly Track Cog 3/32'' X 17t Silver Model=Verdict SG1 Tire Lever mechanism when gripping avoids

Lever mechanism when gripping avoids slipping and damage

One finger braking from the hoods or the drops for less fatigue

Adjustable Q factor range of 51

Chainline/Hub Compatibility 135/142 MTB Hubs Chainline/Hub Compatibility 141/148 Boost Hubs Color Black Defined Color Black Direct Mount Type Direct Mount SRAM Drivetrain Speeds 12 Material Aluminum Offset 3 Ring Position/Type Chain Retaining Single Ring Round or Oval Round Tooth Count 32

Surly Track Cog 3/32'' X 17t Silver Model=Verdict SG1 Tire Lever mechanism when gripping avoidsSurly 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''