The SRAM S500 Eagle AXS Transmission Upgrade Kit gives Eagle riders a clean path to wireless shifting without replacing the entire drivetrain. It includes the S500 AXS rear derailleur, AXS Pod Controller, battery, charger, and essential installation components, making it a practical upgrade or replacement for compatible Eagle setups. With fast electronic shifting, easy AXS customization, and a clean, no-cable cockpit, this kit delivers modern wireless performance with crisp shifting and less clutter.

Components Included

GX Eagle Transmission Derailleur

• Type 3 cage damper helps keep the chain controlled and quiet on rough descents
• Strong aluminum cage built for trail durability
• AXS wireless tech allows easy setup, tuning, and component pairing
• Compatible with Eagle 50T and 52T cassette setups
• An overload clutch helps protect the derailleur from impact damage

Specs

• Speed (RD): 12
• Max tooth: 52
• Minimum (Cassette): 50
• Cage material: Aluminum
• Drivetrain Configuration: 1x
• Chain Technology: Eagle
• SRAM Model ID: RD-GX-E-B1

AXS Pod Controller

• Lightweight AXS Pod controller with improved ergonomics
• Wide adjustment range for a more personal setup
• Click-and-fire two-button layout for crisp, intuitive input
• Custom button assignments through the AXS App
• Flippable design mounts on either side of the handlebar

Specs

• Default Function: AXS - Rear Derailleur
• Clamp: Discrete
• Multi-position: Yes
• Battery size: CR2032
• SRAM Model ID: EC-AXS-POD-D1

AXS Battery

• Charges in 60 minutes or less
• Lightweight (24g) and easy to transport
• Same battery design for all AXS™ components and original SRAM RED® eTap®

Specs

• SRAM Model ID: EP-EAC-BAT-A1

AXS Battery Charger

• Easy and fast charging for your SRAM batteries
• A full charge takes up to 60 minutes to complete

Specs

• SRAM Model ID: EP-EAC-BC-A1

Eagle PowerLock

• Part of the SRAM Eagle integrated drivetrain
• No tools're necessary to install
• From a long line of tough, lightweight chain engineering from SRAM

Specs

• SRAM Model ID: CN-PLCK-12S-A1

Technology

AXS

AXS is SRAM’s new bike component integration system that connects electronic bicycle components and software. The SRAM AXS app allows riders to see battery status, change component behavior, personalize controls, get maintenance reminders, and update firmware.

EALGE

Eagle technology represents our newest 1x drivetrain technology. Eagle is a lighter, simpler, more durable, and easier to use drivetrain. Eagle features all-new 1x components, engineered for even greater durability and performance while maintaining a significant weight advantage over other drivetrain solutions. Eagle technology also provides an expanded gear range of 520%, which is equal to 2x11 drivetrains.

Specifications

• Tools: 1x Chain Gap Tool
• SRAM Model ID: GS-UPK-S500-A1