SRAM Rear Derailleur S100 Eagle drivetrain 12 speed (mechanical) - Replaces SX & NX
RD8205000
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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
Genuine SRAM product supplied by Fife Cycles, authorised dealer in Leuchars, Fife. Free click & collect in store, UK delivery available.
Delivery Information
Delivery Information
We carry lots of stock at Fife Cycles and also have an external warehouse where we get items transferred from.
If the part you want to buy is in stock with us then it will leave us SAME DAY if ordered before 1PM .
It will be sent via Royal Mail or Fedex depending on size and goes on a 24 Hour service complete with Tracking details.
If the item is displayed as 'In stock via Treks warehouse' then expect the order to take a little longer to fulfil (4-8 working days).
Can I return my order?
Can I return my order?
Of course you can.
We accept 30 day returns and even provide a return service free of charge.
Items returned must be in their original packaging and must not have been used.
Return your order here.
Warranty
Warranty
We have you covered. We only deal with great brands so you will always be covered by the manufacturers warranty.
Trek - 2 year warranty
Bontrager - 2 year warranty
Santa Cruz - 2 year warranty
Sram- 2 year warranty.
Shimano - 2 year warranty
Wahoo Fitness - 2 year warranty
Do you have a warranty request? get in touch here.

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