Surly Track Cog 3/32'' X 16t Silver MFPN=98-27624-K003 ERD and weights shown include

ERD and weights shown include PHR washers

Bleeding Edge design for easier maintenanceIncludes steel-backed sintered metal pads

Flange No Color Black/Gray Length 142 Defined Color Black Grip Shift Specific No Shape Ergo Weight 255 Lock On Yes

}SRAM MatchMaker X Cockpit Clamp - Left Black With Ti Bolts

Surly Track Cog 3/32'' X 16t Silver MFPN=98-27624-K003 ERD and weights shown includeSurly Track Cog 3 32'' X 16t Silver. Surly 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 TECH SPECS Tooth Count 16