The Campagnolo Ekar 13-speed groupset represents a significant advancement in gravel cycling technology, offering precise shifting and durability. However, its sophisticated design necessitates meticulous setup to ensure optimal performance. Improper installation or adjustment can lead to subpar shifting experiences.

This guide delves into common setup pitfalls and provides detailed solutions to rectify them.

Understanding the Ekar 13s [paid link] Rear Derailleur

The Ekar rear derailleur is engineered exclusively for a 1×13-speed system, tailored to meet the rigorous demands of gravel cycling. Its design ensures compatibility across various cassette options, ranging from 9-36 to 10-44 teeth. Key features include a 2D parallelogram trajectory for precise mechanical movement, high-grade polymer pulley wheels (12-tooth upper and 14-tooth lower) for smooth chain operation, and a robust construction combining carbon fiber-reinforced polyamide with anodized 7075 and 6082 alloys for enhanced strength and durability.

Common Setup Issues and Their Solutions

1. Misaligned Derailleur Hanger Symptoms: Inconsistent shifting, especially across the cassette’s range.​Solution: Ensure the derailleur hanger is perfectly straight. Given the precision required for 13-speed systems, even minor misalignments can cause significant issues. It’s advisable to use a derailleur hanger alignment tool or consult a professional mechanic for accurate adjustment.
2. Incorrect B-Screw Adjustment Symptoms: Poor shifting performance, particularly when transitioning to larger sprockets.
   Solution: The B-screw controls the distance between the derailleur’s upper pulley and the cassette. Campagnolo recommends a maximum gap of 3 mm. Adjust the B-screw to achieve this specification, ensuring optimal shifting performance.
3. Inadequate Cable Tension Symptoms: Delayed or imprecise shifts.​
   Solution: Proper cable tension is crucial for precise shifting. Utilize the barrel adjuster to fine-tune tension, ensuring the derailleur aligns accurately with each sprocket.
4. Improper Cable Housing and Ferrules Symptoms: Increased friction leading to sluggish shifting.​Solution: Use Campagnolo’s Maximum Smoothness (MS) cable housing and ensure all cable ends are cut squarely. Employ metal ferrules with a “tail” at the rear derailleur adjuster to minimize friction and enhance shifting performance.
5. Excessive Rear Derailleur Spring Tension Symptoms: Increased drivetrain friction and reduced efficiency.​ Solution: Some users have reported high spring tension in the derailleur cage, leading to drivetrain drag. If you experience this issue, consult a professional mechanic to assess and adjust the spring tension appropriately.

Preventive Measures for Optimal Performance

• Regular Maintenance: Periodically inspect and clean the derailleur to prevent dirt and debris buildup, which can impair shifting performance.​
• Professional Setup: Given the precision required for the Ekar 13-speed system, consider having the derailleur installed and adjusted by a certified Campagnolo technician.​
• Use Genuine Components: Always use Campagnolo-approved cables, housings, and components to ensure compatibility and maintain performance standards.​

Conclusion

The Campagnolo Ekar 13s [paid link] rear derailleur is a high-precision component that demands meticulous setup and maintenance. By addressing common setup issues and adhering to recommended practices, cyclists can ensure smooth and reliable shifting performance, fully leveraging the benefits of this advanced groupset.​

For a visual guide on fitting and adjusting the Ekar 13s [paid link] rear derailleur, you can refer to the following tutorial: