The Sram X01 Eagle AXS Rear Derailleur features a maximum capacity for 52 teeth and 12 speeds and provides you with simple and smooth shifting, excellent performance, impermeability, light transmission, and maximum durability for the practice of mountain biking, without bounce and chain bumps thanks to the bearing clutch.This bike rear derailleur is made of aluminum and pully bearings are made of steel. The AXS system allows connection with an application so you can be aware of the state of the battery or when it needs maintenance. The X HORIZON allows for faster and effortless shifting.The X SYNC technology provides good performance, easy shifting, and silent operation. The Eagle technology allows a light, simple, durable transmission, which is easy to maneuver and keeps the chain stable at all times. Besides, this mountain bike derailleur brings a cage lock that makes chain removal and installation easier.Sram X01 Eagle AXS Rear Derailleur Features:- Aluminium cage - Cage lock for easy wheel removal and installation - Overload Clutch to protect the rear derailleur- Protection class IP69K (dust and waterproof)- Without battery- Max. 52 teeth Specifications:- Mount: Direct mount - System compatibiliy: 12-speed - Cage type: Long cage - Material: Aluminium