Derailleur Sram NX Eagle Long Cage 12sp - BlackDerailleur Sram NX Eagle Long Cage 12sp Black 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 also adds to NX Eagle's overall smooth pedaling feel. The Type 3 ROLLER BEARING CLUTCH provides quiet, consistent performance and durability. Features Completely new rear derailleur incorporating our proven X