NEW Surly Cogs Driver and Single Cog Surly Single Cassette Cog 3/32" Splined 20t fork-type_rigid Resistance unit roller allows for

Resistance unit roller allows for 700c

Volume: 22

The SunRace MZ 12-Speed Cassette offers a wide ratio design

Number of Pockets: 3

Tire Type: Solid

NEW Surly Cogs Driver and Single Cog Surly Single Cassette Cog 3/32" Splined 20t fork-type_rigid Resistance unit roller allows forSurly 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: 20 Cassette Body Type: Shimano 7 Speed Material: Steel Drivetrain Speeds: Single Speed 3 32"