The Campagnolo Ekar 13-speed groupset has established itself as a premier choice for gravel and adventure cyclists, offering precise shifting and robust performance. However, like all high-precision components, it can encounter shifting issues that may affect your ride quality.

This guide provides an in-depth look at common problems and their solutions to ensure your Ekar rear derailleur operates flawlessly.​

Understanding the Ekar 13-Speed Rear Derailleur

The Ekar rear derailleur is designed specifically for gravel riding, featuring a clutch mechanism to maintain chain tension over rough terrain. Its 13-speed configuration offers a wide gear range, making it essential to maintain precise adjustments for optimal performance.​

Common Shifting Issues and Solutions

1. Inconsistent Shifting Across the CassetteSymptoms: Difficulty shifting smoothly between gears, particularly in the middle range.​ Causes and Solutions:
   • Cable Friction: Friction along the shift cable can impede consistent movement of the derailleur. Ensure that the cable housing is free from kinks and that the cables are clean and well-lubricated. Replacing old cables and housing can significantly improve shifting performance.
   • Derailleur Hanger Alignment: A misaligned hanger can cause poor shifting performance. Using a derailleur hanger alignment tool, check and adjust the hanger to ensure it is perfectly straight.
2. Difficulty Shifting into the Smallest or Largest CogSymptoms: The chain hesitates or fails to shift into the highest or lowest gear.​ Causes and Solutions:
   • Limit Screw Settings: Improperly set high and low limit screws can prevent the derailleur from reaching the extreme cogs. Adjust the limit screws to ensure the derailleur can move freely across the entire cassette.
   • Cable Tension: Incorrect cable tension can affect the derailleur’s ability to shift into the smallest or largest cog. Fine-tune the barrel adjuster to achieve the correct tension.
3. Chain Noise in Specific GearsSymptoms: Unusual chain noise or rubbing sounds in certain gears.​Causes and Solutions:
   • B-Screw Adjustment: The B-screw controls the derailleur’s angle relative to the cassette. An incorrect setting can cause the upper pulley to be too close or too far from the cogs, leading to noise. Adjust the B-screw to maintain proper clearance.
   • Chain Length: An improperly sized chain can cause noise and shifting issues. Verify that the chain length is correct for your setup.​
4. Delayed or Hesitant ShiftingSymptoms: A lag between shifting the lever and the derailleur’s response.​Causes and Solutions:
   • Cable Wear or Contamination: Over time, cables can stretch or become contaminated with dirt and moisture, increasing friction. Regularly inspect and replace cables and housing as needed.​
   • Shifter Mechanism Issues: Internal wear or damage within the shifter can cause delayed responses. If cleaning and lubrication do not resolve the issue, consider servicing or replacing the shifter.​
5. Chain Drops or Poor Chain RetentionSymptoms: The chain falls off the chainring, especially on rough terrain.​ Causes and Solutions:
   • Clutch Tension: The derailleur’s clutch mechanism is designed to maintain chain tension. If the clutch is worn or not functioning correctly, it can lead to chain drops. Inspect the clutch and service or replace it if necessary.​
   • Chainline Issues: An incorrect chainline can cause poor chain retention. Ensure that the bottom bracket and crankset are correctly installed to maintain proper chain alignment.​

Preventive Maintenance Tips

• Regular Cleaning: Keep the drivetrain clean to prevent dirt buildup, which can cause shifting issues. Use appropriate cleaning tools and solvents to maintain cleanliness.​
• Routine Inspections: Periodically check the derailleur hanger alignment, cable condition, and chain wear to catch potential problems early.​
• Professional Tune-Ups: Schedule regular maintenance with a professional mechanic to ensure all components are in optimal condition.​

Conclusion

The Campagnolo Ekar 13-speed rear derailleur is a high-performance component that requires meticulous setup and maintenance. By understanding common issues and their solutions, you can ensure reliable and precise shifting, enhancing your overall riding experience. Regular maintenance and prompt attention to any irregularities will keep your Ekar drivetrain performing at its best.