SRAM AXS has made its name as a leader in electronic shifting. The SRAM GX Eagle AXS Upgrade kit represents the most affordable way to upgrade any mechanical Eagle drivetrain to electronic. This kit comes with an electronic derailleur along with a controller. It also includes a battery, charger, and tool. With AXS, riders can expect faster and smoother shifts as well as better customization on the AXS App. The SRAM GX Eagle Upgrade Kit brings electronic shifting to your favorite Eagle groupset.