Surly Single Cassette Cog 3/32" Splined 20t MPFN-BK-54101 }Park Tool SW-7

}Park Tool SW-7

Bushings and spacer designed for use with Pedro's Headset & Bearing Press ensuring precise and accurate installation Inner diameter of 184mm (14mm for 19-37 and 19-41)

SRAM OE pads for no-compromise disc brake performance

SRAM rear derailleur cage assembly parts for rebuilding SRAM rear derailleurs

}Park Tool TWS-3 Torx Compatible 3-Way Wrench

Surly Single Cassette Cog 3/32" Splined 20t MPFN-BK-54101 }Park Tool SW-7Surly Single Cassette Cog 3 32" Splined 20t. Surly 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 TECH SPECS Tooth Count 20 Cassette Body Type Shimano 7 Speed Material Steel Drivetrain Speeds