Splined, hardened chromoly construction Chrome plated to resist rusting Designed for Shimano/Sram style cassette bodies 13T 3/32`
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 13Tx3/32` Silver
Threaded, hardened chromoly design Ultra strong Coated to withstand rusting 1.37` x 24 tpi 13Tx1/8` Silver
Threaded, hardened chromoly design Ultra strong Coated to withstand rusting 1.37` x 24 tpi 13Tx3/32` Silver