The Ekar 1×13 Rear Derailleur from Campagnolo is a groundbreaking component designed for high-performance gravel and road biking. With its robust and reliable features, this derailleur elevates the cycling experience by offering smooth, precise shifting across a wide range of gears. This guide will explore the installation, adjustment, maintenance, troubleshooting, and optimization of the Ekar 1×13 Rear Derailleur, helping riders maximize its performance.

Installation of the Ekar 1×13 Rear Derailleur

Step 1: Prepare the Rear Derailleur Mount

Before installing the derailleur, ensure that the derailleur hanger is straight and in good condition. The hanger should be securely attached to the frame and aligned properly. If it’s bent, it could negatively affect shifting performance.

Step 2: Attach the Derailleur to the Hanger

Align the mounting hole of the derailleur with the derailleur hanger. Use a 5mm Allen key to securely tighten the mounting bolt. Ensure the derailleur is attached straight and that the hanger and derailleur move freely.

Step 3: Install the Chain

Route the chain through the jockey wheels of the derailleur and over the chainring. Ensure the chain is properly sized for the 1×13 setup to avoid slack or excessive tension. Use the recommended Campagnolo chain for best results.

Step 4: Connect the Shifting Cable

Feed the derailleur cable through the derailleur’s cable guide, ensuring it runs smoothly without sharp bends. Secure the cable to the derailleur using the appropriate bolt, then apply tension to the cable by adjusting the barrel adjuster on the derailleur.

Step 5: Final Checks

Double-check all bolts for proper tightness. Test the derailleur by shifting through the gears to ensure smooth operation.

Adjustment of the Ekar 1×13 Rear Derailleur

Setting the Limit Screws

The Ekar 1×13 Rear Derailleur is equipped with two limit screws: one for the low gear (smallest cog) and one for the high gear (largest cog). Adjust these screws to ensure the derailleur doesn’t shift past the cog range.

• Low Limit Screw: Adjust the low limit screw to ensure the derailleur cannot move past the smallest cog.
• High Limit Screw: Adjust the high limit screw so the derailleur can’t overshoot the largest cog.

B-Tension Adjustment

The B-tension screw controls the angle of the derailleur relative to the cassette. Proper B-tension is crucial to ensure smooth shifting and prevent chain rub on the cassette. To adjust:

• Shift to the largest cog.
• Use the B-tension screw to move the derailleur slightly closer or farther from the cassette. The jockey wheel should be about 6-8mm away from the largest cog.

Cable Tension Adjustment

To adjust cable tension, use the barrel adjuster on the derailleur or at the shifter. Start by shifting to the smallest cog, and then use the barrel adjuster to fine-tune the cable tension. Proper tension ensures precise shifting across the entire range.

Fine-Tuning Shifting

Test the shifting performance after adjustments. Shift through all gears to ensure smooth, precise movement. If the derailleur struggles to shift to the largest or smallest cog, slight adjustments to the limit screws or cable tension may be necessary.

Maintenance of the Ekar 1×13 Rear Derailleur

Cleaning the Derailleur

Regular cleaning is essential for maintaining the Ekar 1×13 Rear Derailleur’s performance. To clean:

1. Remove any dirt, mud, and debris from the derailleur using a soft brush or cloth.
2. Apply a degreaser to the jockey wheels and chain to remove any build-up.
3. Wipe off excess degreaser, and then apply a light layer of lubricant to the moving parts of the derailleur.

Lubrication

Lubricating the derailleur regularly helps ensure smooth operation. Use a high-quality lubricant designed for bike components. Apply it to the pivot points and jockey wheels to minimize friction.

Checking for Wear

Periodically inspect the derailleur for signs of wear, including:

• Worn-out jockey wheels
• Damaged derailleur hanger
• Loose bolts or parts

If any wear is detected, replace the worn parts promptly to avoid compromising shifting performance.

Cable and Housing Inspection

Inspect the shift cable and housing regularly. If you notice stiffness or fraying in the cable, replace it to maintain optimal shifting performance. Ensure the housing is free of any kinks or cracks to prevent cable binding.

Troubleshooting Common Set-Up Issues

Shifting Is Slow or Sluggish

• Cause: This could be due to insufficient cable tension or friction in the cable or housing.
• Solution: Check the cable tension and adjust it as necessary using the barrel adjuster. Lubricate the cable if needed and inspect the housing for any blockages.

The Chain Drops Off the Smallest Cog

• Cause: The low limit screw may be too loose, or the derailleur hanger could be misaligned.
• Solution: Tighten the low limit screw and ensure the derailleur hanger is straight and secure.

The Derailleur Hits the Cassette

• Cause: The B-tension screw may need adjustment, or the derailleur may be improperly installed.
• Solution: Adjust the B-tension screw so the derailleur is positioned at the correct angle relative to the cassette. Ensure proper installation of the derailleur.

Skipping Gears or Hesitant Shifting

• Cause: Cable tension may be too high or low, or the derailleur may not be properly aligned.
• Solution: Re-check the cable tension and adjust the limit screws. If the problem persists, inspect the derailleur hanger alignment and straighten it if needed.

Customization and Optimization for Better Performance

Optimizing Chainline and Gear Selection

The Campagnolo Ekar 1×13 Rear Derailleur is designed to work optimally with a 1x drivetrain system. To achieve the best performance:

• Use a compatible chainring size that suits your riding terrain.
• Optimize the chainline by selecting an appropriate gear ratio that minimizes strain on the drivetrain and offers smooth shifting.

Shifting Performance

• Upgrade the derailleur cable and housing to high-quality, low-friction options. This reduces shifting resistance and improves responsiveness.
• Use a precision chain and sprockets for smooth, efficient power transfer through the drivetrain.

Customizing for Riding Style

• For gravel riders, consider experimenting with different cog combinations to find the optimal gearing for your terrain.
• Road cyclists may prefer a more aggressive gear range for fast-paced riding. Customize your setup accordingly by adjusting the gear ratios or choosing a larger chainring.

Comparison with Similar Models

When compared to other 1×13 derailleurs on the market, the Ekar 1×13 Rear Derailleur stands out for its precise shifting performance and robust design tailored for gravel and mixed-terrain riding. Campagnolo’s proprietary technology, such as its ultra-smooth shifting mechanism and durable construction, makes the Ekar 1×13 ideal for long-distance gravel rides and harsh conditions.

• Shimano GRX 1×11: While Shimano’s GRX offers an 11-speed setup, the Ekar 1×13 provides a broader range of gears for more versatility, especially on diverse terrains.
• SRAM Force 1: SRAM’s 1x system is known for its simplicity, but the Ekar 1×13 offers a more refined shifting experience with a wider range, particularly beneficial for riders seeking more top-end speed.

Compatibility with Other Drivetrain Components

The Ekar 1×13 Rear Derailleur is designed to work exclusively with Campagnolo’s Ekar 1×13 drivetrain components. While it is not compatible with other brand-specific cassettes, chains, or shifters, it provides optimal performance when paired with other Campagnolo Ekar components.

• Chain Compatibility: The Ekar derailleur works best with the Campagnolo Ekar 13-speed chain, ensuring a perfect fit and smooth shifting.
• Cassette Compatibility: The derailleur is compatible with the Campagnolo Ekar 13-speed cassettes, which feature a wide range of gear ratios tailored to gravel riding.

Using components outside the Campagnolo Ekar system may lead to suboptimal performance and compatibility issues, so it’s highly recommended to stay within the Campagnolo ecosystem for the best results.