Introduction
This user manual provides comprehensive instructions for the installation, operation, maintenance, and troubleshooting of your microSHIFT XCD 11 RD-M865M Aluminium Rear Derailleur. Please read this manual thoroughly before use to ensure proper function and longevity of your component. This derailleur is designed for 11-speed bicycle drivetrains and features a lightweight aluminium construction.
Product Overview
Figure 1: The Microshift XCD 11 RD-M865M Aluminium Rear Derailleur. This image shows the full derailleur assembly, including the mounting bracket, main body, cage, and jockey wheels. The black finish and robust aluminium construction are visible.
The microSHIFT XCD 11 RD-M865M is an 11-speed rear derailleur constructed from lightweight aluminium. It is designed to provide precise and reliable shifting performance for various cycling disciplines. Key features include its durable build and efficient chain management.
Setup and Installation
1. Tools Required
- Hex wrenches (typically 5mm)
- Cable cutters
- Chain tool
- Torque wrench (recommended)
2. Mounting the Derailleur
- Ensure your derailleur hanger is straight and free from damage.
- Apply a small amount of grease to the derailleur hanger bolt threads.
- Thread the derailleur onto the hanger. Tighten the mounting bolt to the manufacturer's specified torque (refer to your bicycle frame or derailleur hanger specifications, typically 8-10 Nm).
3. Cable Routing and Attachment
- Route the shift cable from your shifter through the frame's cable guides to the derailleur.
- Pull the cable taut and secure it to the derailleur's cable anchor bolt. Do not overtighten.
4. Chain Installation and Length
Install your 11-speed chain. Proper chain length is crucial for optimal shifting and to prevent damage. Consult your chain manufacturer's instructions for determining correct chain length, typically by wrapping the chain around the largest cog and largest chainring (without going through the derailleur) and adding 2-4 links.
5. Initial Adjustments (Limit Screws and B-Tension)
Adjust the High (H) and Low (L) limit screws to prevent the chain from shifting beyond the smallest and largest cogs, respectively. Adjust the B-tension screw to set the proper gap between the upper jockey wheel and the largest cog.
Operating the Derailleur
The microSHIFT XCD 11 RD-M865M derailleur operates in conjunction with an 11-speed shifter. To shift gears, actuate your shifter according to its specific instructions. The derailleur will move the chain across the cassette cogs. Always shift smoothly and avoid excessive force.
- Upshifting: Moving to a smaller cog (higher gear) typically involves pushing a lever or button.
- Downshifting: Moving to a larger cog (lower gear) typically involves pushing a different lever or button.
- Avoid shifting under heavy pedaling load to prevent premature wear and potential chain drops.
Maintenance
Regular maintenance will extend the life and performance of your derailleur.
1. Cleaning
- Clean the derailleur regularly, especially after riding in wet or dirty conditions.
- Use a degreaser to remove grime from the jockey wheels and cage. Rinse thoroughly with water and dry.
2. Lubrication
- Apply a small amount of bicycle-specific lubricant to the pivot points of the derailleur and the jockey wheel bearings.
- Wipe off any excess lubricant to prevent dirt accumulation.
3. Inspection
- Periodically check for bent derailleur hangers, loose bolts, or worn jockey wheels.
- Ensure the shift cable is not frayed or corroded. Replace if necessary.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Poor Shifting / Ghost Shifting | Incorrect cable tension, bent derailleur hanger, worn cable/housing. | Adjust barrel adjuster for cable tension. Check and straighten/replace hanger. Replace cable/housing. |
| Chain Rubs on Derailleur Cage | Incorrect limit screw adjustment, bent cage. | Re-adjust H/L limit screws. Inspect and gently bend cage back if possible, or replace. |
| Excessive Noise from Derailleur | Dirty/dry jockey wheels, incorrect B-tension, worn components. | Clean and lubricate jockey wheels. Adjust B-tension. Inspect for worn parts. |
Specifications
- Brand: microSHIFT
- Model: XCD 11 RD-M865M
- Speed: 11-Speed
- Material: Aluminium
- Color: Black
- Item Weight: 330 Grams
- Mounting Type: Braze-On Mount (standard hanger mount)
- Max Cog Size: 46T
- Included Components: Rear derailleur
Warranty Information
This microSHIFT XCD 11 RD-M865M Aluminium Rear Derailleur comes with a Limited Warranty. For specific terms and conditions, please refer to the warranty documentation provided with your purchase or visit the official microSHIFT website. Keep your proof of purchase for warranty claims.
Customer Support
If you encounter issues not covered in this manual or require further assistance, please contact your local bicycle dealer or the official microSHIFT customer support. Visit the microSHIFT website for contact information and additional resources.
