How to Install, Adjust, and Maintain the XX1 Rear Derailleur

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in AXS, Rear Derailleur, SRAM

The SRAM XX1 Rear Derailleur [paid link] is a high-performance, single-chainring drivetrain component designed for precise and reliable shifting in mountain biking and gravel riding. With its X-Horizon design, Roller Bearing Clutch, and Cage Lock technology, the XX1 derailleur ensures chain stability and minimizes ghost shifting. However, proper installation, adjustment, and maintenance are crucial to maximize its performance and longevity.

This guide will take you through the complete process of installing, tuning, and maintaining your XX1 rear derailleur [paid link] to ensure optimal shifting performance.

Tools Required [paid links]

Step 1: Installing the SRAM XX1 Rear Derailleur

Proper installation of the XX1 derailleur is crucial for smooth and reliable shifting. Follow these steps carefully:

1.1: Preparing the Bike Frame

Before installing, ensure the rear derailleur hanger is straight. A bent hanger can lead to poor shifting performance. Use a derailleur hanger alignment tool to check and correct any misalignment.

1.2: Mounting the XX1 Rear Derailleur

  1. Position the derailleur’s B-knuckle onto the derailleur hanger.
  2. Use a 5mm Allen wrench [paid link] to tighten the main mounting bolt to 8-10 Nm torque.
  3. Ensure the derailleur is firmly attached but avoid overtightening, which can damage the threads.

1.3: Installing the Shift Cable

  1. Shift the derailleur to the smallest cog.
  2. Insert the shift cable into the shifter and thread it through the cable housing.
  3. Guide the cable through the derailleur’s cable pinch bolt and pull it taut.
  4. Tighten the pinch bolt to 4-5 Nm using a 3mm Allen wrench [paid link].

Step 2: Adjusting the XX1 Rear Derailleur for Optimal Shifting

Once installed, the XX1 derailleur requires fine-tuning to achieve precise shifting. Follow these adjustment steps:

2.1: Setting the High Limit Screw

  1. Rotate the high limit screw to align the upper pulley with the smallest cog.
  2. If the pulley sits too far outward, turn the screw clockwise to move it inward.
  3. If the pulley is too close, turn it counterclockwise to move it outward.

2.2: Setting the Low Limit Screw

  1. Shift the derailleur to the largest cog.
  2. Adjust the low limit screw so the upper pulley sits directly in line with the cog.
  3. Turning the screw clockwise restricts movement, while counterclockwise allows more travel.

2.3: Adjusting B-Tension for Chain Gap

  1. Place the chain on the largest cog.
  2. Use a 3mm Allen wrench [paid link] to adjust the B-tension screw until there is a 12-16mm gap between the upper pulley and the largest cog.
  3. Proper B-tension ensures smooth chain movement and prevents skipping.

2.4: Fine-Tuning Indexing Adjustment

  1. Shift through all gears to check for delayed or sluggish shifts.
  2. Use the barrel adjuster on the shifter to fine-tune cable tension.
  3. Turning counterclockwise increases tension, improving shifting to larger cogs.
  4. Turning clockwise reduces tension, improving shifting to smaller cogs.

Step 3: Maintaining the SRAM XX1 Rear Derailleur

Routine maintenance extends the lifespan of your XX1 derailleur and ensures consistent performance.

3.1: Cleaning the Derailleur

  1. Use a degreaser to remove dirt and grime from the pulleys and cage.
  2. Wipe the derailleur with a clean rag.
  3. Avoid using a high-pressure water hose, as it can push dirt into the bearings.

3.2: Inspecting the Derailleur Pulleys

  1. Check for excessive wear or dirt buildup on the upper and lower jockey wheels.
  2. If pulleys spin roughly, consider lubricating the bearings or replacing them.

3.3: Lubricating Moving Parts

  1. Apply a small amount of chain lubricant to the pivot points of the derailleur.
  2. Avoid over-lubricating, as excess oil can attract dirt.

3.4: Checking Cable Tension and Housing

  1. Inspect the shift cable for fraying or corrosion.
  2. If shifting feels sluggish, replace the cable and housing for smoother operation.

Troubleshooting Common SRAM XX1 Rear Derailleur Issues

4.1: Chain Skipping or Poor Shifting

  • Ensure cable tension is correctly adjusted.
  • Check for a bent derailleur hanger and realign if necessary.

4.2: Noisy Shifting

  • Verify the B-tension adjustment to maintain proper chain gap.
  • Clean and lubricate the derailleur pulleys.

4.3: Chain Dropping

  • Ensure the clutch mechanism is engaged.
  • Check for a worn-out chain or cassette.

Conclusion

The SRAM XX1 Rear Derailleur [paid link] is a precision-engineered component that requires proper installation, adjustment, and maintenance to perform at its best. By following the steps outlined in this guide, you can ensure smooth shifting, longevity, and optimal performance on every ride.

By keeping your XX1 rear derailleur in top condition, you’ll enjoy flawless gear changes and enhanced performance on every ride.