The Deluxe Coil Ultimate [paid link] rear shock by RockShox is a high-performance suspension component designed to provide riders with exceptional control and comfort during intense riding. Whether you’re upgrading your bike or looking to fine-tune an existing setup, understanding the intricacies of your Deluxe Coil Ultimate [paid link] can significantly enhance your riding experience. This guide will walk you through the installation, maintenance, and optimization of your Deluxe Coil Ultimate, along with troubleshooting common issues and comparing it to similar models.
Installation of the Deluxe Coil Ultimate
Installing the Deluxe Coil Ultimate rear shock on your bike requires a solid understanding of shock components and suspension setup. Follow these detailed steps to ensure proper installation.
Tools Required
- Torque wrench [paid link]
- 8mm hex key
- 10mm wrench
- Shock pump
- Rags for cleaning
- Threadlocker (optional)
- Cleaning supplies for the shock and mounting hardware
Steps for Installation
- Prepare the Bike:
- Ensure that your bike is clean and the rear triangle is free of dirt or debris. Clean the mounting points and shock components before installation to prevent contaminants from entering the shock.
- Remove the Old Shock (if applicable):
- If you’re replacing an old shock, use the appropriate tools to remove it. Unscrew both the upper and lower mounting bolts, carefully noting the positions of any washers, bushings, or spacers. Keep these parts for re-use if they’re compatible.
- Install the Deluxe Coil Ultimate Shock:
- Position the shock between the mounting points of your bike’s rear triangle.
- Insert the bolts through the upper and lower shock mounts. Ensure the bushings are aligned with the shock eyelets to prevent misalignment or damage.
- Tighten the bolts using a torque wrench [paid link]. It is important to follow the manufacturer’s torque specifications (usually around 15-25Nm for the mounting bolts).
- Adjust the Preload and Rebound Settings:
- With the shock installed, adjust the spring preload to match your rider weight. This can be done using the preload adjustment collar located on the shock.
- Set the rebound damping based on your preference for control and comfort, using the rebound knob.
- Check for Proper Fit and Function:
- Move the suspension through its full travel range to ensure there’s no interference or binding. Verify that the shock mounts securely and that no bolts are loose.
Adjusting and Tuning Your Deluxe Coil Ultimate
Proper tuning of your Deluxe Coil Ultimate rear shock is crucial for maximizing its performance. Adjustments can be made to the compression, rebound, and preload settings. Here’s how to fine-tune your shock for optimal performance.
Preload Adjustment
The preload adjustment controls the initial compression of the shock spring and influences the bike’s sag (the amount the shock compresses under the rider’s weight).
- To adjust preload:
- Use a spanner wrench to turn the preload collar on the shock. Turning it clockwise increases the preload, which reduces sag and stiffens the suspension.
- Conversely, turning it counterclockwise reduces preload, increasing sag and making the suspension more compliant.
For the best performance, aim for about 25-30% sag of your total shock travel, depending on your riding style and weight.
Rebound Damping
The rebound damping controls how quickly the shock returns to its full extension after compressing. Too fast a rebound can cause the shock to feel harsh, while too slow a rebound can make the bike feel sluggish.
- To adjust rebound:
- Locate the rebound knob at the bottom of the shock.
- Turning the knob clockwise decreases rebound speed, making the shock return more slowly.
- Turning it counterclockwise increases rebound speed, making the shock return more quickly.
Start by setting the rebound to a middle position and adjust it from there based on how the shock behaves during your rides. Too fast can lead to a bouncy ride, while too slow can cause the bike to feel sluggish and lose traction.
Compression Adjustment
The compression damping controls how the shock responds to bumps and impacts. The Deluxe Coil Ultimate features an adjustable low-speed compression setting, allowing you to fine-tune your ride.
- To adjust compression:
- Use the low-speed compression knob, usually found near the shock eyelet.
- Turning it clockwise increases compression damping, making the shock stiffer and less responsive to smaller impacts.
- Turning it counterclockwise decreases compression damping, making the shock more responsive to smaller bumps and offering a smoother ride.
For aggressive riding or descending, stiffer compression settings may be preferable to prevent the shock from bottoming out.
Troubleshooting Common Setup Issues
Even after installation and tuning, you might encounter some common issues that can affect the performance of your Deluxe Coil Ultimate rear shock. Here’s how to address these problems.
1. Shock Bottoming Out
If the shock is bottoming out (hitting the end of its travel too easily), there could be several causes:
- Cause: Too little preload or low compression damping.
- Solution: Increase the preload to reduce sag or adjust the compression damping for a firmer feel.
2. Shock Feeling Too Harsh
If the shock feels too harsh, especially over small bumps, the rebound may be set too fast or the compression too stiff.
- Cause: Rebound set too fast or compression too high.
- Solution: Slow down the rebound and decrease the compression damping to make the ride smoother.
3. Excessive Rebound
If the shock rebounds too quickly, it can make your ride bouncy and unstable.
- Cause: Rebound set too fast.
- Solution: Adjust the rebound knob to a slower setting.
Customization and Performance Optimization
While the Deluxe Coil Ultimate offers a high level of performance out of the box, there are several ways to further enhance your bike’s suspension for better handling and comfort.
- Spring Upgrade: If you’re experiencing poor performance due to your weight, consider upgrading to a different spring rate. RockShox offers a range of coil springs to match different rider weights and riding styles.
- Volume Spacers: Adding or removing volume spacers inside the shock can help adjust the shock’s mid-stroke feel and bottom-out resistance. This is ideal for riders who need more control on aggressive descents.
- Air Can Service: Although the Deluxe Coil Ultimate features a coil spring, regular maintenance of the shock’s air sleeve and seals is still necessary to ensure optimal performance. Perform a basic seal service once a year, or more frequently depending on usage.
Comparing the Deluxe Coil Ultimate with Other Models
While the Deluxe Coil Ultimate is a top-tier shock, it’s always useful to understand how it compares to similar models.
- Fox DHX2 Coil: The Fox DHX2 is a comparable rear shock offering coil spring technology and adjustable damping. The DHX2 features more customizable options, including a wider range of rebound and compression settings. However, the Deluxe Coil Ultimate is often considered easier to set up and maintain, with slightly more user-friendly adjustments.
- Marzocchi Bomber CR: The Marzocchi Bomber CR is a solid competitor, featuring a coil spring and external rebound and compression adjustments. It has a very different feel compared to the Deluxe Coil Ultimate, with the Bomber CR providing more plushness and responsiveness over rough terrain.
Ultimately, the choice between these models comes down to rider preference and intended use. If you prefer a straightforward setup with consistent performance, the Deluxe Coil Ultimate is a great option. If you need a shock with more adjustment options and higher versatility, consider looking at the Fox DHX2 or Marzocchi Bomber CR.
Compatibility with Other Drivetrain Components
The Deluxe Coil Ultimate rear shock is compatible with most modern mountain bike frames designed for coil shocks. However, it’s important to check your bike’s rear triangle for proper shock size (eyelet length, stroke length) and ensure the suspension design can handle coil shocks.
- Frame Compatibility: Ensure that your bike frame supports coil shocks in terms of shock length, stroke, and the spring rate. Some frames designed for air shocks may not work as well with a coil shock without adjustments to the frame.
- Drivetrain Considerations: The Deluxe Coil Ultimate is a suspension component and doesn’t directly affect drivetrain compatibility. However, ensure that the bike’s drivetrain is tuned for maximum performance. A well-tuned drivetrain helps ensure that power transfer is smooth, especially on rough terrain where suspension performance is critical.