Whether for the build of their dreams or getting the bike ready for the next race season, the XG-1299 cassette gives riders a 520-percent range and a unique finish. 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 X-Dome architecture and proven XD driver body, it's also backwards compatible to give riders even more Eagle upgrade options for their current bikes. Proven with multiple Olympic, World Cup and World Championship titles, the XG-1299 cassette is available in Gold and Rainbow, completing the expression of the worlds most accomplished and sought after bikes.Features- Available in Rainbow or Gold- 520-percent gear range- XD driver body