NEW Surly Cogs Driver and Single Cog Surly Single Cassette Cog 3/32" Splined 20t variant-size-sm Uses high quality sealed bearings

Uses high quality sealed bearings

43cm 4'11" - 5'4"

racks and bottle cages

Four levels of assist from Eco to Turbo

Shimano GRX RD-RX810 Rear Derailleur - 11-Speed

NEW Surly Cogs Driver and Single Cog Surly Single Cassette Cog 3/32" Splined 20t variant-size-sm Uses high quality sealed bearingsSurly 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"