NEW Surly Cogs Track Cog Surly Track Cog 1/8'' X 18t Silver Type_Brakes Halo II Pullover Headbands feature

Halo II Pullover Headbands feature a pullover design with no elastic to wear out and a patented water-tight seal to direct sweat away from eyes

Surly Single Speed Spacer Kits

the Big Block will hold up its end of the deal

Lever can be rotated into an ideal position after tightening

Anodized aluminum

NEW Surly Cogs Track Cog Surly Track Cog 1/8'' X 18t Silver Type_Brakes Halo II Pullover Headbands featureSurly 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