SRAM S100 Eagle Rear Derailleur - 12-Speed Traditional UDH Half Mount Capable Long Cage 50t Max BLK B1

Based on 10-years of experience with Eagle drivetrain S100 Eagle rear derailleur delivers a modernized derailleur with improved bushing fitment process for long term durability and precision. Eagle is a promise of accurate and purposeful shifting and S100 delivers a high performing 500% range derailleur built to excel in high-torque use in all conditions for all riders.Utilizes proven Drag Spring cage damper for confident chain retentionMax 500-percent range for pairing with 11-50t or 10-50t Eagle cassettes (sold separately)Derailleur hanger mount type (Can be mounted using a traditional type derailleur hanger or optional Half Mount with UDH hanger and half mount plate)Mounting bolt is Half Mount ready - Pair with a UDH and Half Mount plate for increased derailleur hanger security (UDH and Half Mount plate sold separately)X-Actuation for use with Eagle Drivetrain shiftersBackward compatible with Eagle SX NX GX X01 XX1 EcoSystemNOT Compatible with Eagle 70 90 or Eagle Transmission