Surly Single Cassette Cogs - 3/32" Splined

Surly Single Speed Cogs.

Designed as a singlespeed cog but may also be stacked and used with 9-speed shifter. Multi gear use will result in slower less crisp shifting than cogs designed for multi-gear systems

Fit Shimano freehub splines

SCM 415 hardened chromoly steel

Photo for color and material reference only