Surly Track Cog 1/8'' X 15t Silver Fitment-Trek Fuel EXe 2023+ Computer program takes provided measurements

Computer program takes provided measurements and finds the optimum saddle for the customer`s body and end use

Designed for Enduro applications

5mm stainless cable

Can be potioned upright

Surly Track Cog 1/8'' X 15t Silver Fitment-Trek Fuel EXe 2023+ Computer program takes provided measurementsSurly 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''