NEW Problem Solvers Singlespeed Cog 21t fits Problem Solvers Carrier or 6-bolt hubs height_5ft-08in Optical gear display indicates gear

Optical gear display indicates gear position with just a glance

ISO Width (mm): 79 mm

Weight: 91

SM : 5'3" - 5'9"

Compatible with V brake and mechanical disc

NEW Problem Solvers Singlespeed Cog 21t fits Problem Solvers Carrier or 6-bolt hubs height_5ft-08in Optical gear display indicates gearProblem Solvers Singlespeed 6 bolt Cogs are designed to be used with the Problem Solvers Cog Carrier. Compatible with 3 32" and 1 8" chains Cog is also 6 bolt rotor mount compatible for fixed gear use (see instructions for applicable warnings) Tooth Count: 21 Cassette Body Type: Single Cog Driver Defined Color: Silver Material: Steel Drivetrain Speeds: 1