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    Best mechanical shifting on the market

    Most rebuildable rear derailleur on the market

    Simplest set up of any mechanical groupset

    The best mechanical shift under load–Period

    Even with the added watts of E-MTB, the X-Sync tooth profile and 44 specific shifting points on Eagle Transmission cassettes allow you to shift with unstoppable precision under all the power you can muster. It’s the best mechanical shift performance under load there is. It’s not even a contest.

    Tough, reliable, unstoppable performance

    The Eagle 90 Transmission derailleur is the absolute toughest you can find. Using a Full Mount attachment, there’s no derailleur hanger to bend or break, and everything is centered around the center of the axle itself. It’s precise, reliable, and literally strong enough to stand on without a whimper. In the event that it does take a crazy hard hit, it rotates out the way, ready for a quick Trailside Reset that will have you back shredding in seconds. This is what unstoppable on-trail performance is all about.

    Wild longevity, game-changing rebuildability

    The Eagle 90 derailleur is so durable that you’ll probably never need to rebuild it. But if it becomes necessary, it’s the most rebuildable derailleur ever. And all it takes is minutes to rebuild it, with three basic tools. Rebuild kits and skid plates can be found easily. All to help keep your Eagle 90 derailleur on the trails for a lifetime.

    Crank it up–Or down

    Eagle 90 cranksets unique design is forged from aluminium for robustness and dependability, at arm lengths in 5mm increments from 175mm to 155mm. Like the feel of spinning big circles? Choose 175mm crankarms. Want to minimize pedal strikes on a bike with a low-slung BB, choose 155mm crankarms.

    The world’s easiest mechanical setup

    Eagle 90 Transmission gives you an unbelievably simply setup procedure that will blow your mind the first time you do it. As long as you follow the simple procedure we call “prepare, hang, tighten” you’re golden. All that’s left is to route and tension a standard shift cable. Get it built. Get after it.

    The cleanest mechanical cockpit

    The Eagle 90 shifter gives you that extra-satisfying mechanical click with every gear change. Its all-new shape runs parallel to the bar and keeps cables close and tidy. Pairing perfectly with stealth routed SRAM brakes and the new mechanical dropper post lever.

    Upgrade your ride to 90

    Whether upgrading your trusted ride or building your dream bike from the frame up, there’s an Eagle Transmission box set to deliver the dream and match your vision.

    Disassemble Upgrade Reassemble

    Take Eagle Transmission to the next level with your entry point to the AXS Ecosystem of wirelessly connected components. Designed to make upgrading from mechanical to wireless as simple as possible, the GX Eagle AXS Transmission Upgrade Kit includes an AXS-enabled derailleur body, AXS Battery and AXS Pod Controller.