microSHIFT ADVENT Rear Derailleur User Manual

1. Product Overview

The microSHIFT ADVENT Rear Derailleur is engineered for reliable and precise shifting across a wide range of gears. It features a robust design with a built-in clutch mechanism to enhance chain management, particularly over challenging terrain. This derailleur is specifically designed for 9-speed drivetrains and is compatible with microSHIFT ADVENT shifters and 11-46T 9-speed cassettes.

Figure 1: The microSHIFT ADVENT Rear Derailleur, showcasing its black finish, long cage, and the integrated clutch mechanism on the upper body.

Key Features:

• Ratchet-and-Pawl Clutch: Provides superior chain retention and is easily adjustable and repairable.
• Direct Path Cable Routing: Ensures smooth and responsive shifting performance.
• Wide Range Compatibility: Designed for use with 11-46T 9-speed cassettes.
• ADVENT System Integration: Exclusively compatible with microSHIFT ADVENT shifters for optimal performance.

2. Setup and Installation

Proper installation is crucial for the optimal performance of your microSHIFT ADVENT Rear Derailleur. It is recommended that installation be performed by a qualified bicycle mechanic if you are unfamiliar with the process.

2.1 Tools Required:

• Hex wrenches (various sizes, typically 4mm, 5mm)
• Cable cutters
• Torque wrench (recommended for precise tightening)
• Chain whip and cassette tool (if replacing cassette)
• Chain breaker (if replacing chain)

2.2 Installation Steps:

1. Mounting the Derailleur: Attach the derailleur to the bicycle's derailleur hanger. Ensure it is securely fastened with the appropriate torque.
2. Cable Routing: Route the shift cable through the frame and connect it to the derailleur's cable anchor bolt. The direct path cable routing design simplifies this step.
3. Chain Installation: Install a new 9-speed chain, ensuring it is sized correctly for your drivetrain and 11-46T cassette.
4. Limit Screw Adjustment: Adjust the high (H) and low (L) limit screws to prevent the chain from shifting beyond the smallest and largest cogs of the cassette.
5. B-Tension Adjustment: Adjust the B-tension screw to set the proper gap between the upper guide pulley and the largest cog. This is critical for smooth shifting across the cassette.
6. Indexing Adjustment: Fine-tune the shifting by adjusting the barrel adjuster on the shifter or derailleur until shifts are crisp and precise across all 9 gears.

Important: This derailleur is only compatible with microSHIFT ADVENT shifters. Using other shifters may result in poor performance or damage.

3. Operating Instructions

The microSHIFT ADVENT Rear Derailleur operates in conjunction with your microSHIFT ADVENT shifter to provide smooth gear changes.

3.1 Shifting Gears:

• Use your microSHIFT ADVENT shifter to move the chain between the cogs on your 9-speed cassette.
• To shift to a larger cog (easier gear), push the appropriate lever on your shifter.
• To shift to a smaller cog (harder gear), push the other lever on your shifter.
• Always pedal forward while shifting to ensure smooth and efficient gear changes. Avoid shifting under heavy load.

3.2 Clutch Mechanism:

The integrated ratchet-and-pawl clutch helps to keep the chain taut, reducing chain slap and preventing the chain from dropping, especially on rough terrain.

• The clutch is typically engaged by default.
• Some models may feature an on/off switch for the clutch. Refer to your specific derailleur model for details. When the clutch is engaged, you will feel increased resistance when moving the derailleur cage by hand.
• For wheel removal or maintenance, disengaging the clutch (if applicable) can make the process easier by reducing spring tension.

4. Maintenance

Regular maintenance will extend the life and ensure the optimal performance of your microSHIFT ADVENT Rear Derailleur.

4.1 Cleaning:

• After each ride, especially in wet or dirty conditions, clean the derailleur body, pulleys, and cage.
• Use a degreaser to remove grime from the pulleys and chain. Rinse thoroughly with water.
• Dry the derailleur completely to prevent rust.

4.2 Lubrication:

• Apply a small amount of bicycle-specific lubricant to the pivot points of the derailleur and the pulley bearings periodically.
• Lubricate your chain regularly according to riding conditions.

4.3 Clutch Adjustment:

The ratchet-and-pawl clutch is adjustable. If you notice excessive chain slack or the clutch feels too stiff, it can be adjusted. Consult a qualified mechanic or microSHIFT's official resources for detailed clutch adjustment procedures.

4.4 Inspection:

• Regularly inspect the derailleur for any signs of damage, bending, or loose bolts.
• Check the derailleur hanger for alignment. A bent hanger is a common cause of poor shifting.
• Ensure the pulley wheels spin freely and are not worn out. Replace if necessary.

5. Troubleshooting

This section addresses common issues you might encounter with your rear derailleur.

If you are unable to resolve an issue, please consult a professional bicycle mechanic or contact microSHIFT customer support.

6. Specifications

7. Warranty and Support

For warranty information, technical support, or service inquiries regarding your microSHIFT ADVENT Rear Derailleur, please refer to the official microSHIFT website or contact their authorized distributors.

It is recommended to retain your proof of purchase for warranty claims.

microSHIFT Official Website: www.microshift.com