Surly Track Cog 1/8'' X 15t Silver MFPN=Y1MP98020 Type Standard Size 650Cx23 ISO

Type Standard Size 650Cx23 ISO 571 Bead Wire Tread/Sidewall Color Gy/Bsk PSI 110 Weight (Grams) 270 TPI 60 Durometer Features Reflective Sidewall No

elastic holders

5 Spring Adjustments Preload Body Eyelet Standard Damping RC2T Adj

15" Rate (Lbs) 375 Color Black

Replacement freehub bodies for Sun Ringle wheels that accommodate a variety of cassette types

Surly Track Cog 1/8'' X 15t Silver MFPN=Y1MP98020 Type Standard Size 650Cx23 ISOSurly 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 15 Size 1 8''