This new NX Eagle™ derailleur features the proven SRAM 1x-specific X-horizon™ design. The larger, 14-tooth X-SYNC™ lower pulley easily facilitates 11 to 50- and 10- to 50-tooth cassette capacity, and adds to NX Eagle’s overall smooth-pedaling feel. The Type-3 roller bearing clutch™ provides quiet, consistent performance and durability.Key FeaturesEagle™ technology provides an expanded, optimum, gear range making you fast on the flats, giving you control on the climbs and unleashing your speed on the descents.Completely new rear derailleur incorporating our proven X-horizon™ design and new Type-3 roller bearing clutch™ technology.Eagle™ ecosystem-engineered mounting system and cage lock™ positioning add robustness.Eagle™ pulley technology provides greater efficiency, crisper shifting and quieter operation.Eagle™ is a complete drivetrain system that was developed to be an integrated high-performance ecosystem. The engineering and testing that went into the development provide for maximum performance, safety, and long-term durability to ensure a great consumer ride experience. SRAM guarantee this performance when Eagle™ drivetrains are used as a complete ecosystem. For additional information, please contact your SRAM Sales Contact.