Surly Track Cog 3/32'' X 17t Silver MFPN=00.7018.209.002 The longer positive-rake tooth shape

The longer positive-rake tooth shape has been designed to work with Eagle chains to increase chain retention and overall pedaling efficiency while decreasing friction noise and wear

Chris King NoThreadSet Bold Headsets

Competition Black SpokesDouble Butted: 2

(mm) 17 Manufacturer Number 3803 Material Steel Thickness 10

}Lizard Skins DSP 30

Surly Track Cog 3/32'' X 17t Silver MFPN=00.7018.209.002 The longer positive-rake tooth shapeSurly Track Cog 3 32'' X 17t 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 17