SRAM S500 Eagle AXS Upgrade Kit Description: The SRAM S500 Eagle AXS Upgrade Kit has everything you need to simplify your 12-speed SRAM Eagle drivetrain. SRAM designed it to provide smooth shifting under load, so whether you're sprinting or climbing, you can change gears without fear. The derailleur's resilient Overload Clutch handles impacts with ease, and AXS connectivity allows for app-based customization along with simple installation and operation. The derailleur is compatible with SRAM's new 10-52T cassette as well as the 10-50T cassette. With design passed down from the GX Eagle mechanical line, S500 Eagle AXS gets the job done. Features: Compatible with any of the Eagle ecosystem cassettes and crank arms, allowing the use of AXS without an entire groupset swap Rear derailleur is compatible with 10-50t and 10-52t cassettes Kit includes S500 rear derailleur with protector, battery, POD Controller with discrete clamp, battery charger, Chain Gap Tool Specifications: Speeds: 12 Speed Derailleur Cage: Long Cage Cable Pull: N/A (Electronic/Wireless) Derailleur Max Tooth: 52T Derailleur Cage Material: Steel Derailleur Pulley Bearing Material: Steel Controller Clamp: Discrete (Matchmaker X Compatible) Controller Buttons: 2 Controller Battery: CR2032 Color: Black