Surly Single Cassette Cog 3/32" Splined 21t CheckoutTitle=Maxima Bike Suspension Clean The cold-fused integrated seal design

The cold-fused integrated seal design also features a large oil cavity between the two sealing lips to prevent contamination and further ease fork's movement

Fastens to saddle rail and seatpost

8mm Bend S-Bend Extension 362mm Material Aluminum Color Black Bend Type S-Bend

Bionic Finish Eco® provides additional durability and resistance to weather

PedalsGiant Urban Fitness

Surly Single Cassette Cog 3/32" Splined 21t CheckoutTitle=Maxima Bike Suspension Clean The cold-fused integrated seal designSurly 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 21 Cassette Body Type Shimano HG 7 Speed Drivetrain Speeds Single Speed 3 32" Material Steel