NEW Surly Cogs Driver and Single Cog Surly Single Cassette Cog 3/32" Splined 18t variant-size-73x118 8 and 10mm hex tools

8 and 10mm hex tools

Stay connected with your compatible smartphone using LiveTrack and GroupTrack

tool-free mounting on bars from 22

HG-X chain means smoother shifts

NEW Surly Cogs Driver and Single Cog Surly Single Cassette Cog 3/32" Splined 18t variant-size-73x118 8 and 10mm hex toolsSurly 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 Tooth Count: 18 Cassette Body Type: Shimano 7 Speed Material: Steel Drivetrain Speeds: Single Speed 3 32"