SRAM RED AXS Rear Derailleur - 12-Speed, Medium Cage, 36t Max Instruction Manual

Introduction

This manual provides essential information for the proper installation, operation, and maintenance of your SRAM RED AXS Rear Derailleur. Designed for precision and efficiency, this 12-speed electronic derailleur offers seamless shifting and robust performance for various cycling disciplines. Please read these instructions thoroughly before use to ensure optimal performance and longevity of your component.

The SRAM RED AXS Rear Derailleur features wireless AXS technology for effortless setup and customization. Its Orbit fluid damper technology minimizes chain bounce, and larger X-Sync pulleys enhance chain engagement and efficiency. This derailleur is compatible with cassette ranges from 10-28t up to 10-36t, supporting both 1x and 2x drivetrain configurations.

Safety Information

Always wear appropriate safety gear when working on your bicycle. Ensure your work area is well-lit and clear of obstructions. Use only genuine SRAM replacement parts and tools recommended by the manufacturer. Improper installation or maintenance can lead to component failure, resulting in serious injury. If you are unsure about any installation or maintenance procedure, consult a professional bicycle mechanic.

• Ensure all bolts are tightened to the manufacturer's specified torque settings.
• Keep hands and clothing clear of moving parts during operation.
• Do not attempt to modify the derailleur or its components.
• Always disconnect the battery before performing any maintenance or adjustments to prevent accidental shifting.

What's in the Box

Your SRAM RED AXS Rear Derailleur package includes the following:

• SRAM RED AXS Rear Derailleur (12-Speed, Medium Cage)

Note: A compatible SRAM AXS battery is required for operation and is not included with the derailleur. Please ensure you have a fully charged AXS battery ready for installation.

Setup and Installation

Proper installation is crucial for the performance and safety of your SRAM RED AXS Rear Derailleur. It is recommended that installation be performed by a qualified bicycle mechanic.

1. Mounting the Derailleur: Attach the derailleur to the derailleur hanger on your bicycle frame. Ensure the B-limit screw is correctly positioned against the hanger stop. Tighten the mounting bolt to the specified torque (refer to SRAM's official documentation for exact torque values).
2. Installing the Battery: Insert a fully charged SRAM AXS battery into the derailleur. Ensure it clicks securely into place.
3. Chain Installation: Install your 12-speed chain, ensuring it is routed correctly through the derailleur pulleys.
4. Pairing with AXS Shifters:
   • Press and hold the AXS button on the derailleur until the LED flashes green.
   • Press and hold the AXS button on your shifters (one at a time) until their LEDs flash green.
   • Once all components are paired, the LEDs will stop flashing.
5. Limit Screw Adjustment: Adjust the high (H) and low (L) limit screws to prevent the chain from over-shifting off the smallest and largest cogs.
6. B-Limit Adjustment: Adjust the B-limit screw to set the proper gap between the upper pulley and the largest cog on your cassette. This ensures optimal shifting performance across the entire cassette range.
7. Micro-Adjustment: Use the AXS app or the shifter buttons to fine-tune the derailleur's position for precise shifting.

Image: The SRAM RED AXS Rear Derailleur, highlighting its wireless design and pulley system. This image illustrates the general appearance of the derailleur before or after installation.

Operating Instructions

The SRAM RED AXS Rear Derailleur operates wirelessly with compatible AXS shifters, providing precise and responsive gear changes.

• Shifting: Press the designated shifter buttons to shift up or down the cassette. The AXS system allows for intuitive and customizable shift logic.
• Battery Status: The LED on the derailleur indicates battery status. A green light indicates a good charge, while a red light indicates a low charge. A flashing red light means the battery is critically low and needs charging.
• AXS App: Use the SRAM AXS app on your smartphone to customize shift settings, check battery levels, and update firmware.

Maintenance

Regular maintenance ensures the longevity and optimal performance of your derailleur.

• Cleaning: Keep the derailleur, especially the pulleys and cage, clean from dirt and debris. Use a mild soap and water solution and a soft brush. Avoid high-pressure washing directly on electronic components.
• Lubrication: Periodically lubricate the chain according to your chain manufacturer's recommendations. The derailleur itself does not require lubrication beyond what is applied to the chain.
• Inspection: Regularly inspect the derailleur for any signs of damage, wear, or loose bolts. Check the derailleur hanger for alignment.
• Battery Charging: Charge the AXS battery regularly. A full charge typically provides many hours of riding.

Troubleshooting

If you encounter issues with your SRAM RED AXS Rear Derailleur, consider the following common solutions:

• No Shifting Response:
  • Check the derailleur battery charge.
  • Ensure the derailleur is properly paired with the shifters. Re-pair if necessary.
  • Verify that the shifter batteries are not depleted.
• Poor Shifting Performance:
  • Check derailleur hanger alignment. A bent hanger is a common cause of poor shifting.
  • Verify limit screw and B-limit adjustments.
  • Ensure the chain is clean and properly lubricated.
  • Check for worn chain or cassette cogs.
• Unusual Noises:
  • Inspect the derailleur pulleys for debris or wear.
  • Check chain line and ensure the chain is not rubbing on the derailleur cage.

For persistent issues, consult the SRAM AXS app for diagnostics or contact SRAM customer support.

Specifications

Warranty and Support

This SRAM RED AXS Rear Derailleur comes with a Limited Warranty. For specific details regarding warranty coverage, terms, and conditions, please refer to the official SRAM warranty policy available on their website or contact SRAM customer support directly.

For technical support, troubleshooting assistance, or to find authorized service centers, please visit the official SRAM website or contact their customer service department. Always provide your product model number (RD-RED-E-E1) and proof of purchase when seeking support.