MTB wireless rear derailleur
SRAM S500 Eagle AXS Rear Derailleur
SRAM's 2026 non-T-Type Eagle AXS mech for bikes on a conventional hanger. It replaces the GX, X01 and XX1 Eagle AXS derailleurs and suits drop-bar mullet builds with 10-50T or 10-52T Eagle cassettes.
Highlights
Why we rate it
One replacement for three
Directly replaces GX, X01 and XX1 Eagle AXS derailleurs on existing bikes.
Conventional hanger
Fits standard hangers including SRAM UDH, so no Full Mount frame is needed.
Overload clutch
Protects the motor and gearbox when the mech takes a hit.
Type 3 cage damping
Keeps the chain quiet and secure on rough descents.
Mullet-friendly
Pairs with AXS drop-bar controllers to run Eagle range on a gravel bike.
Tech specs
Specification
Manufacturer specification. Details may change without notice.
Specification
- Model
- RD-S500-E-B1
- Part number
- 00.7518.207.000
- Speeds
- 12
- Max sprocket
- 52T
- Total capacity
- 42T
- Cassettes
- Eagle 12-speed 10-50T and 10-52T (non-T-Type)
- Chain
- SRAM Eagle 12-speed
- Drivetrain
- 1x only
- Mount
- Standard derailleur hanger (not Full Mount)
- Battery
- SRAM AXS battery, sold separately
- Colour
- Black
In the box
- Includes
- S500 Eagle AXS rear derailleur (battery not included)
Ordering
Available from The Cycle Collective
Available to order through The Cycle Collective in Dorking. For availability, setup or advice, call 0203 148 6764 or email hello@thecyclecollective.cc.