GCX Cog

Sierra Bicycle Supply Verified independent store

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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 cassett es for extra durability and to lengthen the cassettes life; also offered in a 44T for expanded climbing range Not compatible with any other cassettes Show more