The Jade Coil [paid link] rear shock from DVO is a performance-driven suspension component designed to enhance the handling and comfort of high-performance mountain bikes. Known for its robust design and exceptional damping capabilities, the Jade Coil [paid link] is a popular choice among riders who demand precision and reliability. This guide will provide a detailed review of the Jade Coil, focusing on installation, adjustment, maintenance, troubleshooting, optimization, and comparisons with similar models.

Installation of the Jade Coil Rear Shock

Installing the Jade Coil rear shock requires attention to detail to ensure optimal performance and safety. Proper installation is key to achieving the intended feel and function of the shock.

Tools Required:

• 8mm Allen wrench [paid link]
• Torque wrench [paid link]
• Shock pump
• 10mm spanner
• Rubber mallet
• Grease

Steps for Installation:

1. Prepare the bike: Make sure your bike is stable and the rear suspension is fully compressed. This will ensure there is minimal tension on the shock mounts.
2. Remove the existing shock: Use the 8mm Allen wrench [paid link] to remove the bolts securing the existing shock. Carefully slide the shock out of the mount.
3. Install the new Jade Coil shock: Align the shock with the mounts and slide it into position. Be cautious not to damage the mounting hardware. Grease the shock’s mounting bolts to avoid friction and prevent squeaks.
4. Secure the shock: Tighten the bolts using the 8mm Allen wrench. It’s essential to torque the bolts according to the manufacturer’s specifications (usually around 15–20 Nm). Use a torque wrench [paid link] to ensure precision.
5. Install the coil spring: Slide the desired spring onto the shock body. Secure the spring using the provided preload collar. Use the 10mm spanner to tighten the collar, but avoid over-tightening.
6. Check for movement: Ensure that the shock is free to move within its mounts. There should be no binding or excessive play.
7. Inflate the shock: Use a shock pump to add air to the air canister (if applicable). Set the pressure to match your rider weight and desired firmness, as recommended in the manual.

Adjustment and Tuning of the Jade Coil

The Jade Coil offers several adjustment points that allow riders to fine-tune the shock’s performance. Correct tuning of the shock is essential for achieving optimal handling and comfort.

Key Adjustments:

1. Rebound Damping: The Jade Coil comes equipped with an easy-to-access rebound damping dial. Adjust the rebound damping to control how quickly the shock returns after compression. Start by setting it in the middle and fine-tune based on trail conditions. Slower rebound settings work better for rougher trails, while faster rebound is ideal for smoother surfaces.
2. Compression Damping: This shock features both low-speed and high-speed compression adjustments. Low-speed compression affects the shock’s behavior during small, slow compressions (like cornering or pedaling), while high-speed compression controls how the shock reacts to big impacts, such as drops or hits. Adjust these settings to suit your riding style, with higher compression for aggressive riding and softer settings for trail cruising.
3. Spring Preload: The preload collar can be adjusted to set the spring tension. This should be set based on your weight and riding style. Increasing preload will reduce sag and keep the shock stiffer, while reducing it will make the suspension more active.
4. Spring Rate Selection: Choose a coil spring with an appropriate spring rate for your weight and intended use. A stiffer spring is better for heavier riders or aggressive riding styles, while a softer spring is better for lighter riders or those looking for more comfort.

Maintenance of the Jade Coil Rear Shock

Maintaining your Jade Coil rear shock is critical for long-lasting performance. Regular maintenance helps prevent wear and ensures smooth operation.

Regular Maintenance Steps:

1. Clean the shock: After each ride, wipe down the shock with a clean rag to remove dirt and debris. Pay special attention to the shock body, ensuring that no dirt enters the seals.
2. Check air pressure: Periodically check the air pressure in the shock (if applicable) and adjust it according to the rider’s weight and riding conditions.
3. Inspect the coil spring: Ensure the spring is free from damage or corrosion. Lubricate the spring lightly to maintain smooth action.
4. Check the mounting hardware: Tighten the bolts on the shock mounts regularly. Inspect the hardware for signs of wear or damage.
5. Annual Service: Once a year, consider sending your shock to a professional for a full service, including oil change, seal replacement, and a complete inspection.

Troubleshooting Common Set-Up Issues

While the Jade Coil rear shock is built for durability, like any high-performance component, it can experience some issues during its lifetime. Understanding these problems can help riders diagnose and fix common setup issues quickly.

Common Issues:

1. Sag Problems: If the shock feels too soft or too firm, check the spring rate and preload. The incorrect spring rate or incorrect preload setting could cause excessive sag or lack of comfort.
   • Solution: Adjust the preload collar or switch to a different spring rate to match your body weight and riding style.
2. Rebound Damping Not Working Properly: If the rebound is too fast or too slow, it can cause the shock to feel unstable.
   • Solution: Adjust the rebound damping to the appropriate setting. If the problem persists, check for dirt or debris in the rebound circuit.
3. Lack of Compression: If the shock feels too plush or unresponsive when hitting large obstacles, the compression damping may not be set correctly.
   • Solution: Adjust the low-speed and high-speed compression knobs to a stiffer setting. If this doesn’t resolve the issue, the oil levels may need to be checked or replaced.
4. Noise: Creaking or popping noises from the shock could indicate that the mounting hardware is loose or the spring needs lubrication.
   • Solution: Tighten the bolts, and apply light lubrication to the spring to eliminate friction.

Customization and Optimization for Better Performance

To get the best performance out of your Jade Coil rear shock, consider customizing it to your specific needs. Customization options range from adjusting damping settings to selecting the right spring.

Performance Tuning:

1. Rebound Adjustments: Riders who prefer a more aggressive riding style can benefit from faster rebound settings, which will allow the shock to recover quickly after heavy impacts. Conversely, slower rebound settings are better for more technical, slower-speed riding.
2. Compression Settings for Aggressive Riding: For riders tackling steep, technical trails, higher compression settings will help absorb large impacts. For cross-country riding, you may want to use softer compression settings to absorb smaller hits more comfortably.
3. Spring Selection: Testing different spring rates can help riders optimize their bike’s overall feel. A stiffer spring offers a more controlled ride, while a softer spring provides better small-bump compliance.

Comparison with Other Rear Shocks

When compared to other rear shocks, the DVO Jade Coil stands out for its premium features, including its wide range of adjustability and high-quality materials. The coil shock provides superior performance on rough terrain due to its consistent feel and resilience, unlike air shocks, which may suffer from inconsistent performance over time.

• DVO Jade Coil vs. Fox DHX2: Both shocks are popular choices among aggressive riders. The Fox DHX2 offers similar damping features, but the Jade Coil is often considered easier to set up due to its user-friendly dials. The DHX2 provides more precise high-speed compression adjustment but may require more tuning expertise.
• DVO Jade Coil vs. RockShox Super Deluxe Coil: The RockShox Super Deluxe Coil is another competitor in the coil shock market. While both shocks perform well in rough conditions, the Jade Coil’s higher level of customization options gives it an edge for riders looking for detailed control over their suspension settings.

Compatibility with Other Drivetrain Components

The Jade Coil rear shock is designed to be compatible with a variety of mountain bike frames, including those with 12mm through-axles and standard quick-release systems. When choosing a shock for your bike, it is essential to ensure that the shock’s mounting hardware is compatible with your frame’s specifications. Additionally, the shock’s spring rate should align with the rider’s weight and intended riding style to achieve the best performance.

Compatibility Considerations:

• Shock Mounts: The Jade Coil features a standard eye-to-eye mounting configuration, making it compatible with many modern mountain bike frames.
• Coil Spring Size: Coil springs come in different diameters and lengths, so it’s important to select one that fits your frame’s rear triangle and the shock’s specifications.