The GX Eagle Transmission derailleur is a lesser version of nothing. It delivers everything an Eagle Transmission derailleur possibly can, and then some. It features a revised battery position and a reconfigured gearbox to better protect itself from impacts. To maintain crisp shifting and striking appearance throughout its entire lifespan, hard-chargers can replace both its protective skid plates and two-piece outer link, if needed, making this the most repairable derailleur weve ever made. It also features the first ever tool-free cage and clutch assemblyso its both removable and upgradable too. With a steel inner cage that adds even more robustness, its been built for riders of the real world. Just like all Eagle Transmission derailleurs, its been engineered with a first-of-its-kind Hangerless Interface, mounting around the wheel axle itself and making direct contact with the cassette with no hanger required. The new transmission derailleurs feature the same intuitive pairing