Surly Track Cog 3/32'' X 18t Silver CheckoutTitle=KMC X8 Chain - 8-Speed 3 Wall Dbl Side NMSW

3 Wall Dbl Side NMSW Color Black Hole Count 36 Valve SV Weight ERD 390 Extras Eyeletted

Zip Ties help keep cables and cords out of the way

}Maxxis High Roller II Tire - 27

S Lower EC30 Weight 93 Bearing Type Cartridge Crown Race 26 Color Sotto Voce Black S

Surly Track Cog 3/32'' X 18t Silver CheckoutTitle=KMC X8 Chain - 8-Speed 3 Wall Dbl Side NMSWSurly Track Cog 3 32'' X 18t 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 18