Everything you need to upgrade your Eagle Drivetrain to AXS. Featuring the wireless power of the S500 AXS rear derailleur, the unique customization of the AXS Pod Controller, and everything you need to install, set up, and power your ride. This 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 S500 Eagle AXS Upgrade Kit.