SRAM GX Eagle 1×12-speed – Boost – Groupset
RM 2,590.00
The SRAM GX Eagle™ 1×12-speed Boost groupset consists of
- SRAM GX Eagle rear derailleur – 12-speed
- SRAM GX Eagle trigger shifter – 12-speed
- SRAM GX Eagle X-SYNC DUB Boost crank set with 32 tooth Direct Mount chainring
- SRAM GX Eagle chain 126 links – 12-speed
- SRAM XG-1275 Eagle cassette with 10-52 teeth – 12-speed
Description
Day in, day out, this is the Eagle ecosystem at its best. GX Eagle combines the full-featured capability of Eagle technologies, in a group that realizes the potential within every build. This is where you’ll find the best aluminum MTB crankset we make. GX Eagle has its own version of our new, 520-percent range, 10-52t cassette, for more top end speed or a more comfortable climb—should you choose to run it. If not, GX Eagle is backwards compatible, making replacement parts at the ready. Like other Eagle groups, it gets its own group master colorway as part of our new Eagle Colorsystem, allowing for full group or fully curated builds. It’s the simplest, most trouble-free drivetrain system ever made, offering the freedom to mix and match with any component within the expanded Eagle ecosystem.

- Our best aluminum crankset.
- Direct mount interface compatible with chainrings across the entire Eagle™ Ecosystem.
- Master GX colorway as part of Eagle™ Colorsystem – pairs with all cassettes and chains, from Black to Gold to Rainbow to HardChrome and all-new Copper.
BOOST
BOOST is the standard wheel and drivetrain specification that opens the opportunity for improved frame geometry with shorter chain stays, wider and stiffer suspension pivots, wider range of chainring options, as well as more clearance for bigger tires and wider, stiffer wheels.
Eagle 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 2×11 drivetrains.
X-SYNC 2
SRAM X-SYNC 2 Eagle is the next evolution of SRAM X-SYNC technology. The aggressive teeth design provides better chain retention for a smoother, more efficient pedal feel. With a focus on long wear-life, the X-SYNC 2 Eagle design reduces friction and the accumulation of mud, grit and grime.

- Aluminum trigger designed for a positive lever feel.
- MatchMaker™X compatible.
- Master GX Eagle™ master colorway to match all cassette and chain colors as part of Eagle™ Colorsystem.
The MatchMaker X clamp is more than just a clamp. It’s like having Martha Stewart tidy up your cockpit. Since each clamp accepts up to three controls, you can put everything from your XLoc suspension lockout, your SRAM shifters, SRAM brake levers and AVID brake levers as well as your Reverb XLoc remote, all on two clamps. Short of genetically engineering longer thumbs, it’s the ideal way to put everything within easy reach. Just like Martha would.
Developed specifically for SRAM 1x, X-ACTUATION keeps shifting sharp and consistent across the entire cassette.
ZERO LOSS
ZERO LOSS simply means, well, zero loss—when you push on the lever, for an upshift or down shift, the cable is engaged instantly—zero loss of movement. There is no middle-ground where you’re waiting for the shift to come. Gear changes are instant and precise.

- 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.
XD 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 PIN
FULL 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 that’s a perfect fit for any ride. The open design similar to our X-DOME cassette aids in mud clearance, giving you cleaner shifting performance and longer component life.
Eagle
Eagle 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 2×11 drivetrains.

Riders want the derailleur to do its job shifting on command, whether under climbing load or the stage finish. The GX Eagle™ derailleur gets it done with an updated cage architecture that improves chain management. Refined to work with the new 10-52t cassettes, it’s also backwards compatible for the 10-50t versions. Giving riders choice, because that’s how it should be. Finished with the new GX Eagle™ master colorway – to compliment any cassette and chain colorway a rider wants from the Eagle™ Colorsystem. Further proof that the GX Eagle™ derailleur is there for one thing – to do the job.
- Backwards compatible, works with both 10-50t and new 10-52t cassettes.
- Updated cage architecture provides better chain retention and precise shifts.
- Comes in GX Eagle™ master colorway as part of Eagle™ Colorsystem and goes with all colors of Eagle cassettes & chains – from Black to Gold to Rainbow, to HardChrome and new Copper.
CAGE LOCK
With CAGE LOCK technology in the rear derailleur, wheel removal and installation—as well as chain installation—becomes faster and simpler. Just push the cage forward to create slack and lock it into place.
ROLLER BEARING CLUTCH
ROLLER BEARING CLUTCH technology eliminates derailleur bounce and chain slap without sacrificing precision.
X-ACTUATION
Developed specifically for SRAM 1x, X-ACTUATION keeps shifting sharp and consistent across the entire cassette.

The GX Eagle chain is designed with SRAM’s Eagle geometry, the GX Eagle chain features solid pin construction, Eagle PowerLock and smooth, efficient shifting that you can count on every time out.
- All-new Eagle PowerLock chain connector with FLOW LINK technology provides better chain-guiding and increased longevity
- Unique features and design also provide significantly improved wear resistance on Eagle cassettes and rings
PowerLock
SRAM chain engineers developed PowerLock as a tool free, sure, and consistent way to connect our chains. While PL does not require special tools for install, the especially tight tolerances of 10- and 11-speed drivetrains mandate that each PowerLock is good for a one-time application only.
Eagle
Eagle 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 2×11 drivetrains.
FLOWLINK
Ultra-smooth chain inner-plates are completely devoid of square edges, resulting in a chain that engages the cassette and chainring with far less friction, for quieter performance and better wear life. The design allows a narrower overall profile that can withstand greater angles, and also allows for a flatter outer-plate, which means more consistent chain riveting and enhanced overall strength.
- SRAM GX Eagle rear derailleur – 12-speed
- SRAM GX Eagle trigger shifter – 12-speed
- SRAM GX Eagle X-SYNC DUB Boost crank set with 32 tooth Direct Mount chainring
- SRAM GX Eagle chain 126 links – 12-speed
- SRAM XG-1275 Eagle cassette with 10-52 teeth – 12-speed
Without brakes, hubs and bottom bracket cups! These can be ordered separately.
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