Surly Single Cassette Cog 3/32" Splined 20t Diameter-18in }SRAM Titanium T25 Rotor Bolt

}SRAM Titanium T25 Rotor Bolt Kit - Rainbow Set of 12

so over 90% of the road material consists of silica particles in sand and crushed stone that are harder than any metal

Premium fender compatibility (RockShox Bolt-On Fender included with purchase)

}Cane Creek Air IL Next Gen Rear Shock - 185 x 55mm Black Trunnion

lower bushing and keyways

Surly Single Cassette Cog 3/32" Splined 20t Diameter-18in }SRAM Titanium T25 Rotor BoltSurly 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 20 Cassette Body Type Shimano HG 7 Speed Drivetrain Speeds Single Speed 3 32" Material Steel