Welcome to SRAM Eagle AXSEagle AXS brings the real benefits of wireless electronic shifting to the mountain bike. On a deeper level, it offers discerning riders unprecedented personalization and control of the drivetrain.Incremental enhancements. Perpetual improvements. Revolutionary Innovation. When advancements are continuously made to every attribute of every component, the result is overall performance that is simply second to none.To real cycling enthusiasts, there is nothing more gratifying then achieving the ultimate ride. And the best part is SRAM just keeps making it better.The SRAM GX AXS upgrade kit is your entry point into wireless drivetrain simplicity. Compatible with any of our Eagle ecosystem cassettes and crank arms, the upgrade kit allows you to experience AXS without needing to buy an entire groupset provided you already are using Eagle products. No matter if you are looking to upgrade your ride, or looking for great value replacement parts, look no further than the GX AXS upgrade kit.THIS KIT INCLUDESGX AXS Wireless Rear Derailleur W/ AXS BatteryAXS Wireless Controller W/Clamp for HandlebarSRAM AXS battery Charging dock & charging LeadSRAM 12 Speed Chain Gap ToolEAGLE AXS CONTROLLERNo cable, housing or wires helped pioneer a completely new shifting experience. Allowing you to choose which paddle does what through the AXS App. Choose from: Inboard shift. Outboard shift. Dropper.IT\'S WATERPROOFThe GX Eagle AXS system is completely water and dust proof to the IPX7 international standard. For a mountain biker, it means no hesitation to head out when the weather looks less than ideal.THE AXS APPBuilt in componentry software that makes it possible to both program and personalize Eagle AXS to you exact specification.The seamless integration between AXS hardware and software communicates with your SRAMid. Like sending service reminders when its time to check your wear components.