Problem Solvers Singlespeed Cog 19t fits Problem Solvers Carrier or 6-bolt hubs

Name: Centraal Cycle
Address: 237 Cabot Street, Beverly, MA, 01915, US
Telephone: 978-922-2400
Price range: $$

Problem 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)