Surly Single Cassette Cog 3/32" Splined 18t CheckoutSpec= 35mm Rise Chain catcher is a simple

Chain catcher is a simple add-on component which improves the overall function of your drivetrain and protects your valuable frame from dropped chains

Strong yet competitively lightweight alloy stem for all disciplines

6mm chainline adjustment provided on the slot for precise setup

Lock Type Key Primary Color Black Internal Lock Size Imperial 3x6 Thickness In mm 12mm Internal Lock Size Metric 83x152mm Bracket Side mount

The WT also has Lightweight

Surly Single Cassette Cog 3/32" Splined 18t CheckoutSpec= 35mm Rise Chain catcher is a simpleSurly 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 18 Cassette Body Type Shimano HG 7 Speed Drivetrain Speeds Single Speed 3 32" Material Steel