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% 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.XG-1299 Eagle 10-52t cassette provides riders with a broad 520% rangeFeatures X-Dome architecture high-performance cassette technology that features a hollow, CNC-machined single block of steel that creates a lightweight, stiff, and durable drivetrain componentX-Dome structure excels at mud clearance and provides precise shiftingProven XD driver interfaceItem SpecificationsCassette Body TypeSRAM XDCogs10-12-14-16-18-21-24-28-32-36-42-52ColorGoldDefined ColorGoldDrivetrain Speeds12Range10-52 SRAM XG-1299 Eagle Cassette Cassettes UPC: 710845928079