SRAM XX1 Eagle AXS 12-Speed Rear Derailleur Black, One Size

What Our Gearhead(R) Experts Are Saying:"This derailleur sets the bar for responsive shifts and low-maintenance racing-smooth, silent, and tough, even after hard drops or muddy rides. Battery swaps and app setup are as easy as it gets."XX1 Eagle AXS 12-Speed Rear Derailleur makes every shift count with a wireless design that responds instantly, no matter how hard you're pedaling. The carbon cage and titanium hardware keep weight to a minimum for XC and trail rides, while more ground clearance and a subtle, forward-set design protect the mechanism against rocks and trail damage. The Overload Clutch disengages the motor if struck, then resets without fuss-adding resilience for technical terrain. Programmable through the AXS app for custom shift logic and integration with Reverb AXS dropper posts, this derailleur is truly the heart of high-performance electronic drivetrains for racers and serious riders alike.