Problem Solvers Single Speed Cog (For Cog Carrier or 6-Bolt) (3/32") (21T)
Problem Solvers Single Speed Cog (For Cog Carrier or 6-Bolt) (3/32") (21T), Problem Solvers Single Cogs Features: Fits the Problem Solvers SS Cog Carrier Also 6-bolt rotor mount compatible for fixed gear use (see instructions for applicable warnings) 3/32" compatible Specs: MaterialSteel Tooth Count21 Drivetrain SpeedsSingle Speed 3/32" Defined ColorSilver See Also: FW9901, FW9902, FW9903, FW9907