NEW Surly Cogs Driver and Single Cog Surly Single Cassette Cog 3/32" Splined 20t variant-size-sm double butted aero

double butted aero

Shimano GRX RD-RX810 Rear Derailleur - 11-Speed

high polish finish

Reflective accents

Frame measurements (mm) 42cm 46cm 50cm 52cm 54cm 56cm A

NEW Surly Cogs Driver and Single Cog Surly Single Cassette Cog 3/32" Splined 20t variant-size-sm double butted aeroSurly 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"