SRAM GX EAGLE AXS UPGRADE KITFLY LIKE AN EAGLEWireless electronic drivetrains are quickly becoming the norm in the mountain and gravel world. They are becoming more accessible so more riders can experience unparalleled performance. The SRAM GX Eagle AXS Upgrade Kit is compatible with any Eagle cassette and crankset and allows riders to upgrade to AXS without purchasing an entirely new setup. The upgrade kit comes with a rear derailleur with a battery, a controller with a clamp, a charger and cord, and a Chain Gap Tool. Features Compatible with any Eagle cassette and crank arms Wireless electronic for unparalleled performance Comes with a rear derailleur with a battery, controller with a clamp, a charger and cord, and a Chain Gap Tool | Sram | Gx Eagle Axs Upgrade Kit Rd W. Battery, Controller, Charger, Cord, Tool