Mechanical shifting at its best. The Eagle 90 is a dream come true and much more. It features the same Full Mount derailleur architecture as its AXS Transmission siblings, making it undeniably robust. And in case of emergencies, you can replace the outer and inner parallelogram links, skid plates, and the tool-free removable derailleur cage assembly directly on the derailleur body. This makes it the most repairable derailleur we've ever built. A core element of the system is the sleek and sturdy E-MTB crankset made from forged aluminum, equipped with its drive-specific T-Type chainring. Another standout feature of the Eagle Transmission is its shifting performance under load, which is enabled at the Eagle 90 by the XS-1275 T-Type cassette with its complete X-Sync technology and the e-MTB-specific single-click T-Type actuation shifter. For those who enjoy working on their bike, the Eagle Transmission can be installed in a revolutionary simple setup process consisting of just 4 steps: Prepare, Attach, Tighten, and Route the shift cable and outer housing. It operates entirely without limit screws, no screw for the wrap angle, or any other guesswork. Built to take you as far as your imagination and body allow, the Eagle 90 Transmission offers the rider an unparalleled experience.