The Campagnolo Ekar 1×13 rear derailleur offers gravel riders precision, reliability, and excellent performance across a wide range of terrain. Adjusting and maintaining this component ensures smooth shifting, reduced wear on the drivetrain, and overall improved cycling experience. In this guide, we will explore the installation, adjustment, troubleshooting, and maintenance of the Ekar 1×13 rear derailleur. We will also delve into compatibility with other drivetrain components and compare it with similar models, helping you get the most out of your gravel bike.
Tools Required
- 5mm Allen wrench
- 3mm Allen wrench
- Phillips head screwdriver
- Torque wrench (for precise tightening)
- Chain checker tool
- Chain tool
- Lubricant (bike-specific grease or oil)
- Cable cutters (if installing new cables)
- Screwdriver (flathead for derailleur hanger alignment)
- Cleaning supplies (rag, degreaser)
- Thread locker (optional, for extra security)
Installation of Ekar 1×13 Rear Derailleur
Installing the Campagnolo Ekar 1×13 rear derailleur on your gravel bike is a straightforward process, but it requires careful attention to detail to ensure optimal performance. Follow these steps:
- Prepare the Rear Derailleur Hanger
Ensure that the derailleur hanger is aligned properly. Use a derailleur hanger alignment tool to check for any bends. If the hanger is misaligned, carefully adjust it to ensure it is perpendicular to the rear axle. - Install the Rear Derailleur
Attach the rear derailleur to the derailleur hanger using the provided bolt. Tighten the bolt to the recommended torque specification, usually around 5-6 Nm. Ensure the derailleur is positioned correctly, with the jockey wheels aligned vertically. - Route the Derailleur Cable
Feed the derailleur cable through the cable guide on the frame and into the derailleur’s cable entry point. Secure the cable in place using the derailleur’s clamp bolt. Make sure the cable runs smoothly without any twists or kinks. - Install the Chain
Install a gravel-specific chain compatible with the 13-speed cassette. Use a chain tool to size the chain, ensuring it fits your bike without being too loose or too tight. Install the chain, ensuring it moves smoothly through the derailleur and cassette. - Set Up the Shifter
Install the Campagnolo Ekar shifter on the handlebars, securing it with the appropriate Allen wrench. Adjust the shifter to ensure it functions correctly with the derailleur. - Initial Shifting Test
After installation, test the shifting by rotating the cranks and using the shifter to cycle through the gears. Ensure the derailleur moves smoothly across the cassette. Adjust the barrel adjuster if necessary to fine-tune the cable tension.
Adjusting the Ekar 1×13 Rear Derailleur
Once installed, regular adjustments are necessary to maintain smooth shifting performance. The following steps outline how to adjust the Campagnolo Ekar 1×13 rear derailleur for optimal performance.
1. Check Derailleur Alignment and Hanger Position
A misaligned derailleur hanger is the most common cause of poor shifting performance. After installing the derailleur, ensure the hanger is aligned perfectly with the bike frame. If needed, use a derailleur hanger alignment tool to make fine adjustments.
2. Adjust Cable Tension
Proper cable tension is crucial for smooth shifting. To adjust the tension:
- Shift to the smallest cog in the rear.
- Using the barrel adjuster, increase tension if the derailleur does not shift to larger cogs smoothly, or decrease it if it struggles to shift to smaller cogs.
3. Limit Screws Adjustment
The Ekar 1×13 rear derailleur features limit screws that prevent the chain from overshooting or falling off the cassette. Adjust the limit screws as follows:
- High limit screw: Adjust this screw to ensure the derailleur cannot shift beyond the largest cog.
- Low limit screw: Adjust this screw to ensure the derailleur does not shift beyond the smallest cog.
Start with the high limit screw and test the shifting in the largest gear. Then, adjust the low limit screw to prevent the derailleur from shifting past the smallest gear.
4. B-Screw Adjustment
The B-screw controls the derailleur’s angle in relation to the cassette. Proper adjustment of the B-screw ensures that the jockey wheels maintain the correct gap from the cassette, improving chain retention and shifting precision. To adjust:
- Shift into the largest cog and check the gap between the derailleur jockey wheels and the cassette.
- Turn the B-screw to either increase or decrease the gap, ensuring smooth chain movement.
5. Test the Shifting Performance
After adjusting the cable tension and limit screws, shift through the entire range of gears to ensure smooth and precise shifting. Pay attention to any hesitation or skipping between gears, and fine-tune the adjustments as needed.
Troubleshooting Common Issues
While the Campagnolo Ekar 1×13 rear derailleur is a high-performance component, issues can arise during use. Here are a few common problems and their solutions:
1. Poor Shifting Performance
- Cause: Incorrect cable tension or misaligned derailleur hanger.
- Solution: Re-check the cable tension and derailleur hanger alignment. Ensure the hanger is perfectly straight, and the cable is correctly routed.
2. Chain Dropping Off the Smallest Cog
- Cause: Incorrect low limit screw adjustment.
- Solution: Adjust the low limit screw to prevent the derailleur from moving too far inward, which causes the chain to fall off.
3. Skipping Gears or Hesitation in Shifting
- Cause: B-screw misadjustment or dirty drivetrain.
- Solution: Check the B-screw and ensure there is the correct gap between the jockey wheels and the cassette. Clean the chain and cassette to remove any debris or lubrication build-up.
4. Shifting Only to Larger Gears
- Cause: Cable tension is too tight.
- Solution: Loosen the cable tension using the barrel adjuster, allowing the derailleur to shift to smaller cogs.
Maintenance and Care of the Ekar 1×13 Rear Derailleur
Regular maintenance of the Campagnolo Ekar 1×13 rear derailleur ensures long-term performance and durability. Here’s how to keep the derailleur functioning smoothly:
- Regular Cleaning
Clean the derailleur and cassette regularly to remove dirt, dust, and grime, which can interfere with shifting. Use a degreaser to clean the derailleur and chain, followed by a thorough rinse and dry. - Lubrication
Apply lubricant to the pivot points of the derailleur periodically to maintain smooth movement. Ensure the chain is properly lubricated for optimal performance. - Check for Wear
Periodically inspect the derailleur for any signs of wear, including damaged jockey wheels or bent hanger. Replace worn parts promptly to avoid shifting issues. - Inspect the Derailleur Hanger
The derailleur hanger can bend over time, especially after crashes. Inspect it regularly and realign it as necessary to ensure the derailleur stays properly positioned.
Customization and Optimization for Better Performance
To get the most out of your Campagnolo Ekar 1×13 rear derailleur, consider these customization tips:
- Switch to a Lighter Chain
For weight-conscious riders, a lighter chain can reduce overall weight without sacrificing performance. Choose a chain that’s compatible with the 13-speed system. - Optimize Chainring Selection
The Ekar system uses a wide range of chainrings for gravel bikes. Choose a chainring size that fits your preferred cadence and riding style, whether you prioritize climbing ability or top-end speed. - Upgrade Cables and Housing
High-quality cables and housing can improve shifting performance by reducing friction. Look for cables and housing designed for precision shifting systems like the Ekar.
Comparison with Similar Models
While the Campagnolo Ekar 1×13 rear derailleur is designed for gravel bikes, it’s important to consider how it compares to similar models like the SRAM Rival XPLR or Shimano GRX. The Ekar offers the advantage of a smooth, 13-speed system that’s lightweight and reliable. In contrast, the SRAM Rival XPLR offers a 12-speed range but at a lower price point. Shimano GRX, on the other hand, provides a 10-11 speed system with additional focus on durability.
The Ekar’s unique 13-speed range, precision performance, and compatibility with Campagnolo’s gravel-focused group set make it ideal for those looking for high-end gravel bike performance.
Compatibility with Other Drivetrain Components
The Campagnolo Ekar 1×13 rear derailleur is designed specifically to work with Campagnolo’s Ekar 13-speed cassette and chain. While it is possible to mix and match with other drivetrain components, it is highly recommended to use Ekar-specific parts to ensure smooth shifting and compatibility. The system works best when paired with the Campagnolo Ekar shifters, chain, and cassette.