The Sram XX1 Eagle Rear Derailleur provides lightness, excellent performance, durability, and easy wheel installation. It features a maximum capacity with 52 teeth and 12 speeds, while the bearing clutch avoids bounce and chain bumps during the practice of mountain biking.This bike rear derailleur is made of carbon that offers lightness and durability. The AXS system allows the connection with an application so that 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 smooth, easy to maneuver, and durable transmission, which keeps the chain stable at all times. Besides, this mountain bike derailleur brings with cage lock that makes wheel removal easier.Features:- 12-speed- X-Horizon, type 3- Carbon outer cage- Roller Bearing Clutch Technology for regulation chain tension- Cage lock for easy wheel change- Max. 52 teethSpecifications: - Type: Rear derailleur- Use: MTB- Mount: Direct mount- System compatibiliy: 12-speed- Cage type: Long cage- Material: Carbon