Stronger racers are now free to choose larger chainrings for more top-end speed, without sacrificing climbing range. More time is spent higher up in the cassette where athletes power transfer is most efficient and wear is minimized.Featuring the industrys strongest X-Domearchitecture and proven XDdriver body, its also backwards compatible to give riders even more Eagleupgrade options for their current bikes. With multiple Olympic, World Cup and World Championship titles, it also matches up perfectly to XX1 Eagle AXSenabled componentry. The XG-1299 cassette utilizes the full depth of the new EagleColorsystem. Available in Black to Gold to Rainbow and all-new Copper, the XG-1299 cassette completes the expression of the worlds most accomplished and sought after bikes.Features:Stronger riders can increase chainring size for speed, without sacrificing climbing.Eagle Colorsystem lets the cassette and chain express the look of the bike. Available in Black, Gold, Rainbow and all-ne