No derailleur hangers. No adjustment screws. For ultra-simple braking and shifting adjustment. RED XPLR AXS is the most advanced gravel groupset, with 13 speeds , mated to a 10-46T cassette so you're always in the right gear. The full-mount derailleur that fits frames with the UDH interface ensures this system can handle anything you throw at it. True one-finger braking and significant weight savings mean RED XPLR AXS can climb and descend any terrain. And all your effort propels you forward.Specifications:- Rear derailleur- Pair of levers + calipers- 160mm discs- 10-46 tooth cassette- Derailleur battery + charger- Speeds: 13 Speeds- Discipline: Gravel