NEW Surly Cogs Driver and Single Cog Surly Single Cassette Cog 3/32" Splined 15t chain_7speed Based on the DB1 brake

Based on the DB1 brake design

Padding: None

Range: 14-25

If you want to run it as a replacement on another track frame

the combination of deeper coverage and a MIPS layer give your head more protection just in case things don’t go your way

NEW Surly Cogs Driver and Single Cog Surly Single Cassette Cog 3/32" Splined 15t chain_7speed Based on the DB1 brakeSurly 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: 15 Cassette Body Type: Shimano 7 Speed Material: Steel Drivetrain Speeds: Single Speed 3 32"