How to Install, Adjust, and Maintain the Campagnolo Ekar 13-Speed Rear Derailleur

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in Campagnolo, Rear Derailleur

The Campagnolo Ekar 13-speed rear derailleur is a cornerstone of the Ekar gravel groupset, designed for precision, durability, and smooth shifting across its wide-range cassette. Whether you’re installing a new derailleur, fine-tuning your shifting, or performing regular maintenance, understanding its unique mechanics is crucial for optimal performance.

In this guide, we’ll cover:

  • How to properly install the Ekar 13-speed rear derailleur.
  • Essential adjustments for perfect shifting.
  • Maintenance tips to keep it running smoothly.
  • Troubleshooting common issues.

By following these steps, you’ll ensure seamless performance on even the roughest gravel terrain.

Tools Required [paid links]

Step-by-Step Installation of the Ekar 13-Speed Rear Derailleur

1. Prepare the Bike

Before installing the derailleur, ensure your frame and derailleur hanger are clean and properly aligned. A misaligned hanger can lead to poor shifting performance and premature component wear.

  1. Place the bike in a repair stand for easier access.
  2. Remove the rear wheel to give yourself more room.
  3. Inspect and clean the derailleur hanger with a degreaser.
  4. Use a derailleur hanger alignment tool to confirm proper alignment.

2. Mount the Rear Derailleur

  1. Insert the derailleur mounting bolt into the derailleur hanger.
  2. Tighten using a 5mm Allen wrench [paid link], ensuring it’s torqued to 8Nm.
  3. Double-check that the derailleur sits flush against the hanger without any movement.

3. Install the Chain

The Campagnolo Ekar drivetrain requires a 13-speed chain, which is narrower than 12-speed chains. To install it correctly:

  1. Wrap the chain around the largest cassette cog and front chainring.
  2. Shift the derailleur to the smallest cog for correct chain sizing.
  3. Ensure the chain runs smoothly through the derailleur cage.
  4. Use a Campagnolo-approved 13-speed chain tool to connect the chain with the C-Link system.

4. Connect and Tension the Shift Cable

  1. Route the Ekar-specific shift cable through the frame to the derailleur.
  2. Pass the cable through the barrel adjuster and clamp it securely.
  3. Tighten the clamp bolt to 5Nm to prevent slippage.
  4. Use the barrel adjuster to remove slack before fine-tuning.

Adjusting the Ekar 13-Speed Rear Derailleur for Optimal Shifting

1. Set the High and Low Limit Screws

Proper limit screw adjustments prevent the chain from derailing.

  • High Limit Screw (H):
    • Shift to the smallest cassette cog.
    • Adjust the H screw until the jockey wheel aligns perfectly with the cog.
  • Low Limit Screw (L):
    • Shift to the largest cassette cog.
    • Turn the L screw to align the derailleur cage directly beneath the largest cog.

2. Fine-Tune the B-Screw (Chain Gap Adjustment)

The B-screw controls derailleur cage clearance from the cassette.

  • Shift to the largest cog and check the gap between the upper jockey wheel and cassette teeth.
  • Adjust the B-screw to maintain a 5-6mm gap for smooth transitions between gears.

3. Cable Tension Adjustment

For precise shifting, proper cable tension is essential.

  • Shift through all 13 gears and observe any hesitation or overshifting.
  • If shifting is slow to a larger cog, turn the barrel adjuster counterclockwise.
  • If shifting is slow to a smaller cog, turn it clockwise.
  • Continue small adjustments until shifting is crisp and accurate.

Maintaining the Campagnolo Ekar 13-Speed Rear Derailleur

1. Cleaning and Lubrication

Regular cleaning prevents debris build-up, especially for gravel riding.

  • After every few rides, clean the derailleur with a degreaser and a soft brush.
  • Apply a dry or wet lube [paid link] to the jockey wheels to prevent excessive wear.
  • Avoid spraying water directly onto the derailleur to prevent contamination.

2. Checking for Wear and Damage

  • Inspect the jockey wheels for signs of wear or dirt buildup.
  • Check the derailleur hanger for any bends or misalignment.
  • Examine the shift cable for fraying or rust, replacing it if necessary.

3. Chain Maintenance for Longer Derailleur Life

  • Keep the Ekar 13-speed chain properly lubricated to reduce drivetrain friction.
  • Replace the chain every 2,500-3,500 miles, depending on riding conditions.
  • Use a Campagnolo-approved chain tool for accurate measurements.

Troubleshooting Common Issues with the Ekar 13-Speed Rear Derailleur

1. Shifting Hesitation or Skipping

  • Check cable tension and adjust the barrel adjuster as needed.
  • Ensure the derailleur hanger is straight.
  • Lubricate the jockey wheels and chain.

2. Chain Dropping Off the Cassette

  • Re-adjust the high and low limit screws.
  • Confirm chain length is correct (especially if using a new cassette).
  • Inspect the C-Link connection for secure fastening.

3. Noisy Shifting in Certain Gears

  • Check for bent derailleur hanger and realign if necessary.
  • Adjust the B-screw to fine-tune chain gap.
  • Verify that the chain is properly lubricated.

Final Thoughts

The Campagnolo Ekar 13-speed rear derailleur is engineered for precision and durability, but proper installation and maintenance are crucial for peak performance. Regular adjustments, cleaning, and component inspections will keep your shifting crisp and your rides smooth.

By following these expert tips, your Ekar derailleur will provide smooth and reliable shifting for years to come.