GCX Cog

GCX cogs replace the largest cog on SRAM 11-speed XD cassettes for extra durability and to lengthen the cassettes life.

• GCX cogs replace the largest cog on SRAM 11-speed XD cassettes for extra durability and to lengthen the cassettes life; also offered in a 44T for expanded climbing range
• Not compatible with any other cassettes