More than a mechanical derailleur with a battery and motor, the Eagle AXS™ derailleur is at the heart of the entire AXS system. Its shortened clevis offers 10mm more between the derailleur and the ground and allows for better chain wrap on the cassette. It can then be fixed more inward and forward than a mechanical Eagle™ derailleur. Instantaneous shifting with a single touch, even under World Cup-like pedaling loads, as proven in competition and lab tests. Complies with IP69K water and dust tightness; so no matter what the terrain demands, you're ready. Product pluses: Simple, wireless gear changes. (128-bit encryption) Quiet, secure and smooth transmission in any terrain. Customize and control the system via the app according to your needs. Shock protection, the system incorporates an overload clutch to disengage on impact and return to the desired position.Details : 1x12 speed transmission compatible. Compatible only with Sram X-Dome cassette.Max gearing: 52 teeth. O...