Introducing the latest NX Eagle derailleur, showcasing SRAM's renowned X-HORIZON design tailored specifically for 1x setups. With an enhanced 14-tooth X-SYNC lower pulley, it effortlessly accommodates cassette capacities ranging from 11-to-50 to 10-to-50 teeth, contributing to NX Eagle's seamless pedaling experience. Incorporated with the Type-3 ROLLER BEARING CLUTCH , expect whisper-quiet operation, unwavering consistency, and enduring durability from start to finish. Features: - X-HORIZON design and new Type-3 ROLLER BEARING CLUTCH technology - Pulley technology provides greater efficiency, crisper shifting and quieter operation. - X-Actuation keeps shifting shar and Consistent across the entire cassette