Only Eagle™ technology is the 1x drivetrain engineered for infinite freedom. FULL PIN™ technology uses lightweight, stamped steel cogs held together with high-strength stainless steel pins. The result: a cassette that’s light & strong. The open design similar to our X-DOME™ cassette aids in mud clearance, giving you cleaner shifting performance & longer component life. New X-GLIDE™2 improves both inboard & outboard shifting, as well as chain retention. -Only Eagle™ is a complete system-engineered drivetrain designed, tested & proven to deliver the lightest, highest- performing, most durable system for all riders on any trail. -Eagle™ technology provides an expanded, optimum, gear range making you fast on the flats, giving you control on the climbs & unleashing your speed on the descents. -Compatible with all levels of Eagle drivetrain systems -This XG-1275 cassette is an integral part of the SRAM Eagle™ drivetrain system. NO COMPROMISES. -FULL PIN™ technology uses eleven lightweight, stamped steel cogs & one 50-tooth aluminum cog held together with high-strength stainless steel pins -Super wide 10-50t gear range—a perfect fit for any ride -Optimized gear steps across entire range -Open design aids in mud clearance -ISO 4210 compliant. See Declaration of Conformity for details.