SRAM XG-1299 Eagle Cassette - 12-Speed, 10-52t, For XD Driver, Gold, C1Whether for the build of their dreams or getting the bike ready for the next race season, the XG 1299 cassette gives riders a 520% 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