Origin8 Ultim8 Single Speed Cassette/6-Bolt Disc Cog 20T x 3/32`

Dual purpose single speed cassette cog or 6-bolt disc fixed cog. Compatible with Shimano cassette bodies and 6-bolt disc rotor mounts. Great fixed gear conversion for 6-bolt disc hubs. CNC machined AL6061 Zero-Flex base. 3/32` forged CroMo cog