The XG-1275 Eagle cassette is for riders who prioritize all day function over anything else. With both 520% (10-52t) and 500% (10-50t) gear range available, riders have 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 SRAM's X-DOME cassette that aids in mud clearance, giving riders crisp shifting performance and longer component life.