Upgrade your SRAM Eagle groupset to Eagle GX1 AXS wireless with this kit. Giving you faster, more consistent shifts wireless Eagle AXS lets you shift when you want, under load, without ever having to plan around terrain. Gathering useful data, telling you how many shifts have been made, how frequently each cog is being used, helping you make smarter choices on chainring size, and more. With intuitive and refined practicality SRAM GX1 Eagle AXS is built to enhance your riding experience.   Specification: Sram GX1 Eagle AXS Rear Derailleur – 12 Speed. Sram AXS Derailleur Battery. Sram GX Right Hand Pod Shifter. Battery Charger.