Surly Single Cassette Cog 3/32" Splined 20t MPFN-BK-54101 }K-EDGE SRM Professional Road Braze-On

}K-EDGE SRM Professional Road Braze-On Chain Catcher Black

A light wet-style lubricant that penetrates and flushes old lube and contaminants out with each application

}Park Tool SW-7

}Sunday Integrated Headset - 1-1/8" 15mm Black Conical

Surly Single Cassette Cog 3/32" Splined 20t MPFN-BK-54101 }K-EDGE SRM Professional Road Braze-OnSurly 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