ORIGIN8

 Splined, hardened chromoly construction Optimized for strength and durability Designed for Shimano/Sram style cassette bodies ZERO-FLEX taper base design Strongest single speed cog on the market 20Tx3/32` Silver

 Threaded, hardened chromoly design Ultra strong Coated to withstand rusting 1.37` x 24 tpi 20Tx1/8` Silver

 Threaded, hardened chromoly design Ultra strong Coated to withstand rusting 1.37` x 24 tpi 20Tx3/32` Silver

 DUAL USE SS Cog or 6-bolt Disc fixed cog Fits Shimano cassette bodies or 6-Bolt Disc mounts Great fixed gear conversion for 6-Bolt disc hubs Removable 6B disc mount ZERO-FLEX base design Forged chromoly construction 65g 20Tx3/32`