Is the Ekar 13 RD the Best Rear Derailleur for Gravel Bikes?

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Gravel bikes demand a rear derailleur that offers reliability, precision, and versatility. Among the various options available, the Campagnolo Ekar 13 RD [paid link] stands out as a high-performance choice. Designed specifically for gravel riding, the Ekar 13 RD combines Campagnolo’s renowned craftsmanship with features that suit the rugged demands of off-road cycling. In this guide, we will delve into the installation, adjustment, maintenance, troubleshooting, and optimization of the Ekar 13 RD rear derailleur, helping you determine whether it’s the best option for your gravel bike.

Tools Required

  • 5mm Allen wrench
  • 2.5mm Allen wrench
  • Torque wrench (for precise torque settings)
  • Chain checker tool
  • Screwdriver (for fine-tuning)
  • Bike stand (optional but helpful)
  • Cable cutters
  • Phillips head screwdriver

Installation of the Campagnolo Ekar 13 RD

Installing the Campagnolo Ekar 13 RD requires a few essential steps, ensuring that the derailleur functions optimally with your gravel bike’s drivetrain. Follow these steps to install the Ekar 13 RD correctly:

  1. Remove the old derailleur: Begin by removing the existing derailleur and derailleur hanger from your bike. Ensure the bike is on a stand for stability.
  2. Install the derailleur hanger: Before attaching the derailleur, ensure the derailleur hanger is straight and properly aligned. This will ensure the derailleur moves smoothly across the gears.
  3. Mount the Ekar 13 RD: Position the derailleur onto the derailleur hanger and tighten the mounting bolt with a 5mm Allen wrench. Make sure it’s securely fastened but not over-tightened.
  4. Install the chain: Run the chain through the jockey wheels of the Ekar 13 RD and ensure it is properly threaded through the derailleur.
  5. Attach the derailleur cable: Using the 2.5mm Allen wrench, secure the derailleur cable into the derailleur’s cable clamp. Make sure the cable is taut and there is no slack.
  6. Test the derailleur movement: Shift through all the gears and check the derailleur for smooth, precise shifts. If the derailleur skips or the shifting is rough, adjustments may be needed.

Adjustment of the Ekar 13 RD

Fine-tuning the Campagnolo Ekar 13 RD is critical for ensuring smooth shifting performance. Here are the main adjustments you may need to make:

B-Screw Adjustment

The B-screw plays a vital role in adjusting the derailleur’s distance from the cassette. Too close or too far can lead to poor shifting performance.

  1. Locate the B-screw: This screw is usually located near the derailleur’s jockey wheels.
  2. Adjust the B-screw: To bring the derailleur closer to the cassette, turn the B-screw clockwise. To increase the gap, turn it counterclockwise.
  3. Test shifting performance: Shift through all gears again after adjusting the B-screw to ensure smooth operation.

Limit Screw Adjustment

The limit screws ensure the derailleur doesn’t overshoot or go beyond the smallest or largest cog.

  1. Adjust the high-limit screw: This screw controls the derailleur’s movement on the smallest cog. If the derailleur moves past the smallest cog, turn the high-limit screw clockwise to restrict the movement.
  2. Adjust the low-limit screw: This screw controls the movement on the largest cog. If the derailleur goes past the largest cog, adjust the low-limit screw in the same manner.
  3. Check shifting: After adjusting the limit screws, test the bike through all gear combinations to ensure the derailleur is shifting accurately.

Indexing Adjustment

To achieve precise shifting, you need to adjust the indexing of the derailleur:

  1. Shift to the smallest gear and loosen the derailleur cable.
  2. Tighten the cable incrementally while shifting through the gears. Fine-tune the tension until each shift is smooth without skipping or hesitation.

Maintenance of the Campagnolo Ekar 13 RD

Proper maintenance ensures the longevity and optimal performance of your Campagnolo Ekar 13 RD. Regular upkeep is crucial, especially when riding on gravel terrain, where dirt, mud, and sand can take a toll on the derailleur.

Regular Cleaning

  1. Remove dirt and debris: After each ride, especially on gravel, use a clean cloth to wipe the derailleur, jockey wheels, and cassette. Use a degreaser if necessary to remove buildup.
  2. Lubricate the derailleur: Apply a small amount of lubricant to the moving parts, including the pivot points, to ensure smooth operation.

Check for Wear

  1. Inspect the jockey wheels: Over time, the jockey wheels can wear down due to constant friction. If they show signs of excessive wear or damage, replace them.
  2. Check the derailleur hanger alignment: Use a derailleur hanger alignment tool periodically to ensure the hanger is perfectly aligned.

Keep the Chain Clean

A clean chain is essential for proper derailleur function. Regularly check the chain for stretch using a chain checker tool and replace it if needed. A worn chain can cause poor shifting and damage to the derailleur.

Troubleshooting Common Issues

Despite its precision and durability, the Campagnolo Ekar 13 RD can still experience some issues. Here are some common problems and how to fix them:

Problem: Poor Shifting Performance

  • Cause: Misadjusted indexing or cable tension.
  • Solution: Follow the steps for indexing adjustment mentioned earlier. Ensure the derailleur cable is taut but not overly tight.

Problem: Chain Drops off the Smallest or Largest Cog

  • Cause: Incorrect limit screw adjustment.
  • Solution: Adjust the high-limit and low-limit screws to ensure the derailleur stays within the bounds of the cassette.

Problem: Skipping Gears

  • Cause: Worn-out jockey wheels, damaged chain, or a misaligned derailleur hanger.
  • Solution: Inspect the jockey wheels and chain for wear. Realign the derailleur hanger if necessary.

Customization and Optimization

The Campagnolo Ekar 13 RD is built to handle the unique demands of gravel riding, but with a few adjustments, you can optimize it even further for your riding style.

Fine-Tuning for Gravel Performance

  1. Jockey Wheel Selection: Opt for ceramic-coated jockey wheels for improved durability and reduced friction. This helps with smoother shifting, especially in muddy or wet conditions.
  2. Cog Range: Consider using a cassette with a wider gear range for better adaptability on steep, rugged gravel terrain.

Compatibility with Other Components

The Ekar 13 RD is specifically designed to be paired with the Campagnolo Ekar 13-speed drivetrain, offering a 1x system that simplifies gear shifts and minimizes weight. When installing the Ekar 13 RD, ensure that your cassette and chainring are also compatible with the 13-speed setup to achieve optimal performance.

Comparison with Similar Models

The Ekar 13 RD competes with other high-end gravel-specific rear derailleurs such as the SRAM Force 1 and Shimano GRX 800. Here’s how it compares:

  • Weight: The Campagnolo Ekar 13 RD is lightweight, making it ideal for long gravel rides where minimizing weight is crucial. It outperforms the Shimano GRX in this regard.
  • Precision: Campagnolo’s shifting precision is highly regarded, and the Ekar 13 RD maintains this legacy with quick, accurate gear changes. It has a slight edge over the SRAM Force 1, especially in off-road conditions.
  • Durability: The Ekar 13 RD features robust construction designed to withstand the harshest gravel environments. It’s built for longevity, matching the Shimano GRX 800 in terms of ruggedness.

Conclusion

The Campagnolo Ekar 13 RD is a stellar choice for gravel riders who demand precision, durability, and smooth shifting in all conditions. With its lightweight design, smooth performance, and easy maintenance, it stands as one of the best rear derailleurs for gravel bikes on the market. If you’re looking for reliability on rugged terrain, the Ekar 13 RD should be at the top of your list. Whether you’re upgrading your current setup or building a new gravel bike, this derailleur offers a high-performance solution for every gravel enthusiast.