Surly Single Cassette Cog 3/32" Splined 15t ERD-600mm Internal Lock Size Metric 80cm

Internal Lock Size Metric 80cm Bracket SH Primary Color Red Thickness In mm 5mm Internal Lock Size Imperial 2

A racing favorite

Axle Pack is rated to 10kg per pair

light and stiff to effortlessly propel you forward

Surly Single Cassette Cog 3/32" Splined 15t ERD-600mm Internal Lock Size Metric 80cmSurly 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 15 Cassette Body Type Shimano HG 7 Speed Drivetrain Speeds Single Speed 3 32" Material Steel