SRAM Rear Derailleur S100 Eagle drivetrain 12 speed (mechanical) - Replaces SX & NX

Built on a decade of Eagle drivetrain development, the SRAM Eagle S100 rear derailleur delivers reliable shifting performance with updated durability and improved component fitment. The modernised design features an enhanced bushing fitment process to maintain precise operation over long-term use, even under demanding riding conditions.

Available with a standard mounting bolt or the innovative Half Mount configuration for UDH-equipped bikes, the derailleur provides improved hanger stability and a cleaner integration similar to Transmission systems. Designed for high-torque applications and consistent shifting performance, the Eagle S100 continues the Eagle promise of accurate, dependable gear changes across varied terrain.

Features
• Updated design built on ten years of Eagle drivetrain development
• Half Mount option improves derailleur hanger stability on UDH frames
• Half Mount interface helps protect the hanger from impacts and knocks
• Proven Drag Spring cage damper for secure chain retention
• Compatible with Eagle shifters using X-Actuation technology
• Designed to work with wide-range Eagle cassettes

Specifications
Speed compatibility: 12-speed
Drivetrain configuration: 1x
Cable pull ratio: X-Actuation
Shift technology: X-Actuation
Cage type: Long cage
Maximum cassette size: 50T
Pulley bearing material: Steel
Cage material: Steel
Minimum cassette compatibility: 50T

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