The S100 is your gateway to dependable, wide-range shifting that's built to last. Designed to deliver maximum value without sacrificing performance, it's E-MTB ready and engineered with system integrity at its core, giving you exactly what you need, nothing more. What's Included S100 Eagle Rear Derailleur - Built on a decade of Eagle expertise, the S100 derailleur features an improved bushing fitment process for lasting durability and precision. Delivering on Eagle's shifting promise, it offers a high-performing 500% range that handles high-torque demands in any conditions. S100 PG-1210 Cassette - The PG-1210 Eagle 11-50t cassette is built for durability and easy rebuilding, tackling any terrain with confidence. Compatible with a wide range of wheel manufacturers via a splined driver body, it also features swappable E-MTB speed limit gears. S100 Eagle Shifter - The S100 Shifter pairs discreet cable routing with X-Actuation design. An extended lever lightens shifting effort, while a single-click mechanism ensures precise, consistent performance. S100 Eagle Chain - Built on trusted Eagle architecture, the S100 chain ensures seamless compatibility across the Eagle ecosystem. Solid pin construction and a PowerLock closure deliver smooth, precise shifting every ride. Derailleur Cassette Shifter Chain Works With S100 Eagle Rear Derailleur Model ID: RD-S100-B1 Shift Technology: X-Actuation Chain Technology: Eagle Max Tooth: 50t Drive Config: 1x Cage Material: Steel S100 PG-1210 Cassette Model ID: CS-PG-1210-B1 Range: 11-50t Speed: 12-Speed Cog Sizes: 11,13,15,17,19,22,25,28,32,36,42,50t Drivetrain Config: 1x Freehub Interface: Splined (Shimano HG) S100 Eagle Shifter Model ID: SL-S100-B1 Shifter Type: Trigger Cable Pull Ratio: X-Actuation Clicks: Single Clamp: Integrated handlebar clamp Cable Length: 2200mm Drivetrain Config: 1x Matchmaker Compatible: No S100 Eagle Chain Model ID: CN-EAGL-S100-A1 Speeds: 12-Speed Length: 126 links Chain Connector: PowerLock (Included) Pin: Solid pin Inner Link Finish: None Outer Link Finish: None E-Bike: Yes Compatibility - SRAM Eagle S-Series, including the S100, S200, and S500, are built to work seamlessly with previous generation SRAM Eagle 12-speed components (SX, NX, GX, X01, XX1), offering backward compatibility with your existing drivetrain - S-Series components are not compatible with SRAM Transmission (T-Type) - The PG-1210 Cassette is only compatible with Shimano HG / SRAM splined freehubs