NEW Surly Cogs Driver and Single Cog Surly Single Cassette Cog 3/32" Splined 17t inventory-parts-components-seatposts Brake Lever Actuation: Short Pull

Brake Lever Actuation: Short Pull Super SLR

more precise shifting

Clamps below and adjusts independently of the front derailleur

Often duplicated but never replicated

Compatible with Shimano MTB rear derailleurs designed for 9 or fewer cogs

NEW Surly Cogs Driver and Single Cog Surly Single Cassette Cog 3/32" Splined 17t inventory-parts-components-seatposts Brake Lever Actuation: Short PullSurly 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: 17 Cassette Body Type: Shimano 7 Speed Material: Steel Drivetrain Speeds: Single Speed 3 32"