Surly Single Cassette Cog 3/32" Splined 13t MFPN=910-21-372 Model ABS Speedhub Size 220mm

Model ABS Speedhub Size 220mm Mount 4-Bolt Rohloff Thickness 2

} Works with all multi-speed bikes (including 12-speed) as well as some single-speed models and e-bikes

Bad conditions won’t stop you from getting a ride in and the Rock Hawk tire is right there with you

laminated beech and oak wood veneer and real Italian suede leather

Surly Single Cassette Cog 3/32" Splined 13t MFPN=910-21-372 Model ABS Speedhub Size 220mmSurly 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 13 Cassette Body Type Shimano HG 7 Speed Drivetrain Speeds Single Speed 3 32" Material Steel