Surly Single Cassette Cog 3/32" Splined 21t Tooth Count-20

Surly Single Cassette Cog 3/32" Splined 21t Tooth Count-20Surly Single Cassette Cog 3 32" Splined 21t. 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 21 Cassette Body Type Shimano 7 Speed Material Steel Drivetrain Speeds

Adjustments are made externally (no need to remove crankarms)

Washer and fixing bolt included

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5 Width OD 29

PR1400 OXiC Disc Brake PadsBrake pad inserts are made by Swiss Stop

0mm Aluminum Chainring Spacer Bag/20

External width = 81mm

1-1/8 inch

The DHR II is is the gold standard for riders wanting maximum traction and cornering grip when trail conditions get loose and muddy

}SKF Low-Friction Dust Wiper Seal Kit: RockShox 32mm Fits A1-A2 SID (08- 16) Reba Revelation Recon Sector Argyle Tora and XC32 Forks

6 PSI 40 TPI 60 Tire Bead Folding Tire Diameter 27

Rings 36-22 Rings 36/22 Defined Color Black Spindle Interface Type SRAM/Truvativ GXP Chainring BCD 64 Chainring BCD 104 Color Black Chainline/Hub Compatibility 135/142 MTB Hubs Drivetrain Speeds 10 Number of Chainrings Double Crank Intended Use Mountain Pedal Spindle 9/16" BB Included No Crank Length (mm) 170