Expert Opinions: Ekar 13 RD Rear Derailleurs Reviewed

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The Campagnolo Ekar 13 RD [paid link] is a standout component designed for gravel and adventure bikes. With 13 gears, it offers precision and smooth shifting even in rugged conditions. This article will provide a detailed guide on how to install, adjust, maintain, troubleshoot, and optimize the Ekar 13 RD for superior performance. It will also explore compatibility and compare this model with others to help riders make informed decisions.

Installation of the Campagnolo Ekar 13 RD

Installing the Campagnolo Ekar 13 RD requires careful attention to detail to ensure proper functionality. Here’s a step-by-step guide:

Tools Required:

  • 5mm Allen wrench
  • 2.5mm Allen wrench
  • Torque wrench
  • Chain whip and cassette lockring tool (if replacing cassette)
  • Screwdrivers (flathead)
  • Small grease tube
  • Cable cutters
  • Rear derailleur hanger alignment tool

Steps for Installation:

  1. Prepare the Rear Derailleur Hanger:
    • Ensure that the derailleur hanger is not bent. Use a derailleur hanger alignment tool to check alignment. If it’s out of line, carefully adjust it to avoid shifting issues later.
  2. Attach the Derailleur to the Hanger:
    • Use the 5mm Allen wrench to secure the derailleur to the derailleur hanger. Ensure the bolt is tightened to the manufacturer’s torque specifications.
  3. Install the Chain:
    • Install the chain through the rear derailleur, ensuring it follows the correct path. You’ll need to feed the chain through the jockey wheels and around the derailleur pulleys.
  4. Attach the Shift Cable:
    • Insert the shift cable into the derailleur, securing it using the 2.5mm Allen wrench. Be sure to route the cable correctly to avoid friction and excessive wear.
  5. Install the Cassette (if required):
    • If you’re installing a new cassette, use the chain whip and lockring tool to attach the new cassette to the freehub body, ensuring it is properly tightened.
  6. Final Adjustment:
    • Use the torque wrench to double-check the tightness of all bolts and ensure everything is secure. Make sure that there are no kinks or bends in the shift cable.

Adjusting the Campagnolo Ekar 13 RD

Once installed, the Ekar 13 RD may require fine-tuning to ensure it shifts smoothly across all 13 gears. Here’s how to adjust it:

1. Set the B-Tension Screw:

  • The B-tension screw controls the distance between the derailleur’s jockey wheel and the cassette. Set the screw so that the jockey wheel is approximately 6-8mm away from the largest cog in the cassette. This will help ensure smooth shifting and prevent chain drag.

2. Adjust the Limit Screws:

  • Low Limit Screw: Set the low limit screw to ensure the derailleur does not shift the chain beyond the smallest cog. Turn it clockwise or counterclockwise to adjust.
  • High Limit Screw: The high limit screw should prevent the derailleur from shifting too far into the larger cogs. Adjust the screw to prevent chain skipping when shifting into the largest gear.

3. Indexing the Shifter:

  • Shift through each gear while observing the movement of the derailleur. If the derailleur doesn’t shift into a particular gear or overshoots it, adjust the barrel adjuster on the rear derailleur or at the shifter. Small tweaks will ensure precise indexing.

4. Check the Cable Tension:

  • Ensure that the shift cable is tight enough to pull the derailleur smoothly but not so tight that it creates unnecessary resistance. You can adjust the tension using the barrel adjuster.

Maintaining the Campagnolo Ekar 13 RD

Proper maintenance of the Ekar 13 RD ensures longevity and consistent performance. Here’s how to keep it in top shape:

1. Lubrication:

  • Periodically, apply a small amount of lubricant to the derailleur pivots to maintain smooth movement. Avoid over-lubricating, as this can attract dirt and grime.

2. Clean the Derailleur:

  • Keep the derailleur clean by wiping it down regularly with a soft cloth. Use a mild degreaser for more thorough cleaning, but avoid spraying it directly on the derailleur—use a cloth to apply it.

3. Inspect for Wear:

  • Regularly inspect the jockey wheels for wear, especially if you ride on rough gravel roads. Replace them if the teeth are worn down.

4. Cable Maintenance:

  • Check the shift cable for fraying or wear and replace it if necessary. Keeping the cable clean and well-lubricated will ensure smooth shifting.

Troubleshooting Common Set-up Issues

Despite the Campagnolo Ekar 13 RD’s robust design, common issues can still arise. Here’s how to troubleshoot them:

1. Skipping Gears:

  • If the derailleur skips gears, it could be due to improper indexing. Recheck the barrel adjuster and limit screws. Ensure the cable tension is correct.

2. Derailleur Hitting the Cassette:

  • If the derailleur is making contact with the cassette, check the B-tension screw setting. Adjust it so that the derailleur is the correct distance from the cassette.

3. Chain Dropping:

  • Chain drops often occur when the derailleur isn’t aligned correctly or if the limit screws are improperly set. Recheck the alignment of the derailleur hanger and adjust the limit screws as necessary.

Customization and Optimization

Optimizing your Campagnolo Ekar 13 RD can make a significant difference in performance. Here are some tips:

1. Gear Ratios:

  • The Ekar 13 RD works best with a wide-range 13-speed cassette, perfect for gravel riding. Customizing your gear ratios by choosing the right cassette can improve your climbing ability or provide smoother cadence on flat terrain.

2. Shifter Positioning:

  • Customize your shifter position to ensure easy access and comfort. Adjusting the position of the shifters can help reduce fatigue on long rides.

3. Switching to a Lighter Chain:

  • For weight-conscious cyclists, consider upgrading to a lighter chain compatible with the Ekar 13 RD. This can reduce overall bike weight, improving acceleration and handling.

Comparison with Other Models

The Campagnolo Ekar 13 RD is often compared to other gravel-specific derailleur models, such as Shimano GRX and SRAM Force 1X. Here’s how the Ekar stacks up:

1. Shifting Performance:

  • The Ekar 13 RD features smooth and precise shifting, even on rough gravel. Compared to the Shimano GRX, which uses a 10-speed setup, the Ekar’s 13-speed setup offers a wider range of gears, making it a better choice for riders who tackle both steep climbs and fast descents.

2. Weight:

  • The Ekar 13 RD is relatively lightweight, which is a significant advantage for gravel riders looking to minimize bike weight without compromising performance. While SRAM’s Force 1X is similarly lightweight, the Ekar’s unique combination of durability and smoothness sets it apart.

3. Price:

  • The Ekar 13 RD is priced higher than Shimano’s GRX series but provides exceptional value in terms of performance and versatility for gravel riders. The price point is competitive when compared to SRAM’s Force 1X but may not be the ideal option for cyclists on a budget.

Understanding Compatibility with Other Drivetrain Components

The Campagnolo Ekar 13 RD is designed to work seamlessly with other Campagnolo Ekar components. However, compatibility with other drivetrain components may require adjustments:

  • Cassette Compatibility: The Ekar 13 RD is optimized for use with Campagnolo’s 13-speed Ekar cassette. It is not compatible with 11-speed or 12-speed cassettes, so be mindful of your gear setup when considering upgrades.
  • Shifters: The Ekar 13 RD is intended for use with Campagnolo’s Ekar-specific shifters. Using shifters from other brands or series could result in poor performance or failure to shift correctly.
  • Chain Compatibility: The Ekar system requires a specific chain designed for 13-speed use. Ensure that you are using the correct chain to maintain optimal shifting performance.

By understanding these compatibility factors, you can ensure that your Campagnolo Ekar 13 RD performs at its best without unexpected issues.