The Rocket 1 ultralight 10-50t 12 speed XD compatible cassette features 11 cogs cut from a single forged billet of Cr-Mo steel with a patented 12th AL7075-T6 back plate. This produces an XD compatible 12 speed cassette that is light and strong and works with both Eagle and the new 12 speed Shimano at a much better price. The cogs are forged and ramped for precise shifting, and spacing is tightly controlled between the cogs. The cogs are then surface treated with a hard coating to resist wear. The cassette is designed to fit on an XD freehub body for an easy upgrade without having to change wheelsets.
o 10-50t cassette features tooth ratios for optimal gear selection.