SRAM Black SRAM Eagle S100 rear derailleur 2026

Based on 10-years of experience with Eagle drivetrain, Eagle S100 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.

• Mounting bolt is Half Mount ready. Pair with a UDH and Half Mount plate for increased derailleur hanger security
• Utilizes proven Drag Spring cage damper for confident chain retention
• Max 500-percent range for pairing with PG1210 cassette
• X-Actuation for use with Eagle Drivetrain shifters 
• Cable pull ratio: X-Actuation
• Cage: Long
• Max tooth: 50
• Pulley bearings material: Steel
• Cage material: Steel
• Drivetrain Configuration: 1x
• RD Minimum (Cassette): 50
• Shift Technology: X-Actuation
• Chain Technology: Eagle