Surly Single Cassette Cog 3/32" Splined 18t CheckoutSpec= 30.0mm - Black 65L) dimensions 21x6x10cm color black

65L) dimensions 21x6x10cm color black weight 135g

2 D: BB Length (CM) 36 C: Down Tube Length (IN) 7

1/2` x 20 pedal taps

square taper

Surly Single Cassette Cog 3/32" Splined 18t CheckoutSpec= 30.0mm - Black 65L) dimensions 21x6x10cm color blackSurly 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