Sram: 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 we’ve ever made. It also features the first ever tool-free cage and clutch assembly – so it’s both removable and upgradable too. With a steel inner cage that adds even more robustness, it’s been built for riders of the real world. Just like all Eagle Transmission derailleurs, it’s 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 and set-up procedure as our Eagle AXS derailleurs. The revolutionary Full Mount attachment method creates a far stronger connection because it grips both sides of the frame. Let the record show that the GX Eagle Transmission derailleur plays second fiddle to nothing. It’s all in for all day.FEATURESRevised battery position, reconfigured gearbox, replaceable skid plates and outer link, tool-free cage and clutchInstall and pair via the reliable and familiar standard AXS set-up and pairing procedureHangerless Interface, Full Mount attachment methodRadically clear setup process, no adjustment requiredAXS battery and Pod controller available separately SPECIFICATIONSSpeed (RD) 12sCable pull ratio n/aCage (RD) n/aMax tooth 52Colour (RD) BlackPulley bearings material n/aCage material (RD) Steel