The new SRAM 10-52 Eagle cassette for riders who prioritize all day function over anything else. With an expanded, 520-percent gear range giving riders more ability to spin and recover on the burliest climbs. Featuring FULL PIN™ technology that uses lightweight, precision engineered steel cogs permanently connected with high-strength stainless steel pins. An open design similar to our X-DOME™ cassette that aids in mud clearance, giving riders crisp shifting performance and longer component life.Features:520-percent gear range utilizing the industry standard XD™ hub driver.Light and strong FULL PIN™ technology similar to X-DOME™ bringing true 1x gear range to more riders and builds.Lunar and black colorway makes the XG-1275 cassette right at home on any build.TECHNOLOGYXD Driver BodyXD is a cassette driver body design that allows the use of a 10-tooth small cog and provides an improved interface with the cassette.FULL PINFull Pin technology uses eleven lightweight, stamped cogs held together with 123 high - strength stainless steel pins. The result: a cassette that's light, durable and equipped with SRAM's super wide 10 - 42 gear range thats a perfect fit for any ride. The open design similar to the X-Dome cassette aids in mud performance, giving you cleaner shifting performance and longer component life.EAGLEEagle technology represents our newest 1x drivetrain technology. Eagle is a lighter, simpler, more durable and easier to use drivetrain. Eagle features all new 1x components, engineered for even greater durability and performance while maintaining a significant weight advantage over other drivetrain solutions. Eagle technology also provides an expanded gear range of 520%, which is equal to 2x11 drivetrains.Specifications:Speed: 12 SpeedGearing: 10-52Cassette Finish: BlackTechnology: XGCog Sizes: 10/12/14/16/18/21/24/28/32/36/42/52