Surly Single Cassette Cog 3/32" Splined 17t

Surly Single Speed Cogs. Photo for color and material reference only 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 Item Specifications Material Steel Cassette Body Type Shimano 7 Speed Drivetrain Speeds Single Speed 3/32" Tooth Count 17