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 retention
• Max 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 shifters
• Backward compatible with Eagle SX, NX, GX, X01, XX1 EcoSystem