6-speed freewheel-cassette with zinc plated sprockets and Fluid Drive technology.
Wolftooth cassette extension cog for SRAM XG1195 or XG1199 casssettes to upgrade an 11-speed cassette from a 10-42 to a 10-46 gear ratio.
The Wolftooth GCX sprocket replaces the stock 42T on your XX1 or X01 cassette and upgrade it to 44t. You will have a 5% lower gear for those big climbs.
Wolftooth replacement cassette cog for SRAM XX1 / X01 cassettes. Replaces the worn out stock 42 teeth cog.
Wolftooth cassette extension cog for Shimano 10-speed XT and XTR cassettes to upgrade from 11-36 to 11-40.
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