This is the range of Eagle™. The range to reach. To realize. A range beyond limitation or complexity. Beyond what’s been done before. A range where fearless dedication meets relentless engineering. Where silent precision meets troublefree reliability. Where simplicity matches strength.
A whole new system for whole new horizons. The range to realize.
This is GX Eagle™. 

Best-in-class 1x range that allows you to ride anywhere, this XG-1275, 10- to 50-tooth Eagle™ cassette FULL PIN™ technology uses lightweight, stamped steel cogs held together with high-strength stainless steel pins. The result: a cassette that’s light and strong. The open design—similar to our X-DOME™ cassette—aids in mud clearance, giving you cleaner shifting performance and longer component life. New X-GLIDE™2 teeth features mate perfectly with Eagle™ chains to improve both inboard and outboard shifting, as well as chain retention.

FEATURES AND BENEFITS

• Extremely durable and lightweight cassette that incorporates FULL PIN™ technology using eleven lightweight, stamped steel cogs and one 50-tooth aluminum cog held together with highstrength stainless steel pins.
• Perfect range for any ride with the 10-50t [500 percent] gearing.
• Smooth, consistent and optimized gear steps across entire range of cassette.
• The XG-1275 Eagle™ cassette not only offers a massive 500-percent gear range for lower low gears and higher high gears, but also the ability for advanced level riders to ride larger chainrings for a smoother overall pedaling feel.

SRAM Eagle™ drivetrains are the only 1x drivetrains that are fully system engineered for optimal performance. Eagle™ drivetrains are designed, tested and proven to deliver the lightest, highest-performing, most durable systems for all riders on any trail.
Eagle™ technology provides an expanded, optimum, gear range that allows you to realize your bike’s potential beyond where it has ever been.
Every SRAM GX Eagle™ component is 100-percent compatible with all levels of SRAM Eagle™ drivetrain systems.
This is Eagle™.
 

FULL PIN™

FULL PIN™ technology uses lightweight, stamped steel cogs held together with high-strength stainless steel pins. The result: a cassette that’s extremely light, durable and equipped with SRAM’s super wide gear range that’s a perfect fit for any ride. The open design similar to the X-DOME™ cassette aids in mud clearance, giving you cleaner shifting performance and longer component life.
 

X-Glide 2

X-GLIDE™ 2 is next generation of SRAM X-GLIDE™ technology optimized for the EAGLE™ 12-speed cassette. It provides quick, precise, power-on shifting performance throughout the gear range, and increases chain retention on larger cogs.
 

XD™ Driver Body

XD is a new cassette driver body design that allows the use of a 10 tooth small cog and provides an improved interface with the cassette