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SRAM Eagle Transmission: The Dream, Delivered

The drivetrain of dreams, Eagle Transmission is here.

SRAM Eagle Transmission XO
SRAM Eagle Transmission XO

SRAM – During a 6-year history of Eagle and 11-years of the dedicated 1x drivetrain, we’ve refined the facets of the system we control. Even with this legacy, we wondered whether a new level of performance was possible, not just for SRAM’s benefit, but to help riders and improve the ride as a whole. So, we rethought the entire interface between frame, wheel, and drivetrain. Eagle Transmission is a first-of-its-kind approach to the mountain bike drivetrain that sets a new bar and new expectation to the whole system.


This is the dream delivered.

It exists to eliminate pain points riders encounter with all other drivetrains. Imagined, designed and engineered into tangible technology for riders like you.


This is shifting flawlessly under maximum load, even with the additional wattage of an eMTB. This is the elimination of all variance by building everything around the center of the axle. This is a transcendently tough derailleur that can withstand any lateral impact that gets in its way. This is a simple four-tool, five-minute setup procedure that requires literally zero further adjustment.


Eagle Transmission has been designed and engineered into tangible technology for the world’s most demanding riders. Built around the universal constant of the wheel axle itself, Eagle Transmission is a radically robust, fully integrated and interdependent wireless transmission that literally changes how we ride. It simplifies, strengthens, and extends lifespan to new limits. It uses no derailleur hanger or adjustment screws and lets you shift flawlessly under maximum power. Eagle Transmission drops a seismic shift on what it means to shift a mountain bike.


With Eagle Transmission, how you shift your mountain bike will be forever changed.

Welcome to the dream made real.

SRAM Eagle Transmission XX & XO
SRAM Eagle Transmission XX & XO

Simplicity now simpler

By building everything around the center of the wheel axle itself, Eagle Transmission uses no derailleur hanger allowing for a totally new, streamlined way to set up your bike with no further adjustment required.


To set up Eagle Transmission, all you need is a chainbreaker, an 8-millimeter hex, a T-25 torx, and a torque wrench.


Time to go ride.

SRAM Eagle Transmission

An unprecedented ride experience

Eagle Transmission is an approach to the mountain bike drivetrain that sets a new bar and new expectation as the realization of a first-of-its-kind approach to the whole system. An approach built around the one constant across all bikes – the center of the wheel and axle – eliminating unnecessary parts and allowing all other requisite features work in perfect relationship to this constant.


What used to be a “drivetrain” is now a fully integrated and interdependent wireless transmission making setup mind-blowingly easy. It also delivers unprecedented strength, reliability, and durability. The need for adjustment has been eliminated. For the first time ever, the Eagle Transmission delivers a shift under any circumstance, even with the additional torque loads of E-MTB. And the “T-Type” distinction is for components that are only compatible with Eagle Transmission.

SRAM XX Transmission Full Build Kit

XX Eagle Transmission

XX Eagle Transmission is where imagination, innovation and unprecedented performance meet. The drivetrain of dreams, XX Eagle Transmission has been designed and engineered into tangible technology for the world’s most demanding. The zenith. The lightest. The level with no level beyond.

SHOP THE XX COLLECTION

SRAM XO Transmission Full Build Kit

X0 Eagle Transmission

X0 Eagle Transmission is for put-up or shut-up riders who don’t have time to wonder about their componentry. The level of full legitimacy, X0 Eagle Transmission gives confidence to the most serious riders in every discipline. Light, tough, reliable and precise, X0 Eagle Transmission is built to help you prove your mettle.

SHOP THE X0 COLLECTION

SRAM Eagle Transmission Magic Wheel

Magic Wheel

That oversized bottom pulley in the Inline Cage is called the Magic Wheel because its outer ring rotates independently from the inner spoked hub. Should a stick become lodged between pulley and cage, Magic Wheel takes over, and your chain can continue threading through the derailleur without a damaging jam or bind.


As a safeguard to the ride experience, the magic wheel allows for continuous chain movement, even if the lower pulley wheel is impeded by debris.

SRAM Transmission Hangerless Interface

Hangerless Interface

As with the entire Eagle Transmission system, robustness itself starts with simplicity too. The fewer the variables, the less chance there is to go wrong. Where the Universal Derailleur Hanger once was, the Hangerless Interface allows the derailleur to “Full Mount” at a single constant center point – the wheel’s axle. Consistent positioning of the derailleur relative to the cassette means crisper, more reliable shifting, easier setup and greater system longevity.

Utilizing the widely adopted frame design required for the Universal Derailleur Hanger, the Hangerless Interface allows Eagle Transmission to work around the one universal constant – the center of the rear axle. This opens up the possibility for perfect shifting, eliminates unnecessary parts and allows all other features to work in perfect relationship to this constant.


Key Features / Details

  • No hanger required, thanks to the mounting around the wheel axle itself and its direct contact with the cassette driver body.

  • Direct mount of the derailleur offers a stiffer, more precise shift and greater system longevity.

  • The Hangerless Interface and Full Mount attachment method creates a far stronger connection to deliver unprecedented robustness.

SRAM Eagle XX Transmission

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