Single Speed Cog Steel
Single speed (slide on) Cog.
Non-ramped for singlespeed use and abuse.
3/32" for use with most any singlespeed chain - 3/32" or 1/8".
Available in 14, 16, 18 and 20T sizes...you should probably buy one of each.
Designed for use on hubs with multi-speed or single speed Freehub Bodies.
This COG will NOT work with threaded hubs...but you knew that.
The inexpensive solution for you singlespeed and singlespeed conversion needs.