Mechanical. Now Unstoppable. Meet the world’s first mechanical drivetrain with Full-Mount durability, rebuildable toughness, and rock-solid shifting under max power. With an easy, foolproof setup and unmatched reliability, Eagle 90 Transmission redefines mechanical shifting for the modern MTB rider. The Best Shift Under Load. Period. Power through every shift, no matter the terrain. With X-Sync tooth profiles and 44 optimized shifting points, Eagle 90 delivers precise, smooth gear changes under full load, whether on an E-MTB or a hard-charging trail bike. Tougher. Smarter. Unstoppable. Forget bent derailleur hangers! Eagle 90’s Full Mount interface anchors directly to the frame at the axle for unmatched strength and precision. It’s so strong you could stand on it, yet smart enough to rotate away on impact, allowing for a quick trailside reset so you can keep riding. Built to Last, Ready to Rebuild With industry-leading durability, you may never need to rebuild your Eagle 90 derailleur. But if you do, it’s the easiest to service ever. With just three tools and a few minutes, you can swap all parts and get back on the trail fast. Plus, rebuild kits and skid plates are readily available to keep your drivetrain running for a lifetime. Effortless Setup, Clean Cockpit With Eagle 90’s "prepare, hang, tighten" process, installation is shockingly simple. Just route and tension the shift cable, and you’re ready to rip. Plus, the redesigned Eagle 90 shifter delivers the most satisfying mechanical click yet - sleekly mounted parallel to the bar for a clean, modern cockpit. Eagle 90 isn’t just mechanical shifting, it’s the next evolution of it. Eagle 90 Transmission Features: Premium double-click Eagle 90 T-Type Actuation mechanical shifter is built with modern shift ergonomics and a premium textured aluminum lever touchpoint Eagle 90 T-type rear derailleur features the revolutionary Hangerless Interface and Full Mount attachment method that creates a far stronger connection because it grips both sides of the frame (Requires frame with UDH interface) Full Mount Eagle 90 derailleur is the most rebuildable Eagle Transmission derailleur, with replaceable B-Knuckle, Inner/Outer Links, Bash Guards, Bushings, Cage, and Cage Assembly Compatible with all T-Type cassettes and chains *Cable housing not included Specs: Derailleur Shifter Derailleur Cable Pull Ratio: T-Type Actuation Max Tooth: 52t Cage Material: Aluminum Drive Config: 1x Shift Technology: T-Type Actuation Chain Technology: T-Type Weight: 395 Grams Shifter Clicks: Double Cable Pull Ratio: T-Type Actuation Cable Length: 2200mm Shifter Type: Trigger Clamp: Included Weight: 135 Grams Model ID: SL-90-A1