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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
Please be aware that images and descriptions are usually supplied by the brand / manufacturer and are in no way affiliated with Cycle Centre Congleton Limited T/A CycleStore. We only resell items from third parties and do not design or manufacture any products. Product information is compiled automatically from supplier data and occasional errors can occur — if a detail such as size, specification or price looks incorrect, please contact us to confirm before ordering.
| Order Value | Service | Estimated Delivery | Cost |
|---|---|---|---|
| Under £39.99 | Royal Mail Tracked | 2–3 working days from dispatch | £4.99 |
| £39.99 and over | Royal Mail Tracked | 2–3 working days from dispatch | FREE |
| Any order — Express | Royal Mail Tracked 24hr / Parcel Force 24hr | Next working day from dispatch | £6.99 |
| Bikes | Parcel Force 48hr Signed For | 2 working days from dispatch | FREE |
Delivery times shown are from dispatch, not from the point of ordering. As we source products from a range of suppliers, lead times can vary — please check the product page, your cart, or your order confirmation for the most accurate estimate for this item.
Some remote UK postcodes (Highlands, Islands) may carry a courier surcharge on larger orders — we will always contact you before applying any additional charge.
Questions? Email sales@cyclestore.co.uk with your order number.
