Upgrading your rear suspension can dramatically improve your riding experience, offering better control, comfort, and overall performance. The Opal Air [paid link] rear shock from DVO is a premium suspension option that caters to both trail and enduro riders, delivering a highly customizable ride. This guide will cover the installation, adjustment, maintenance, troubleshooting, and optimization of the Opal Air [paid link] rear shock to ensure that you get the most out of this high-performance component.

Installation of the Opal Air Rear Shock

Installing the Opal Air rear shock is a relatively straightforward process for riders familiar with suspension setup. However, it’s essential to follow a few critical steps to ensure the shock functions at its best.

Tools Required:

• 8mm Allen wrench [paid link]
• 5mm Allen wrench [paid link]
• Torque wrench [paid link]
• 2mm and 3mm Allen wrenches [paid link] (for finer adjustments)
• Shock pump
• Grease (for mounting bolts)
• Measuring tape or caliper

Installation Steps:

1. Remove the Existing Shock:
   • Use the 8mm Allen wrench to remove the mounting bolts securing the old shock to the frame. Keep these bolts for reinstalling the new shock.
2. Prepare the Opal Air Shock:
   • Before installing the new shock, check that it’s set to the correct sag and air pressure settings (consult the manual for suggested pressures).
3. Mount the Opal Air Shock:
   • Insert the top and bottom mount eyelets into their respective frame mounts. Ensure the shock’s eyelets are aligned correctly with the frame pivots.
4. Secure the Shock:
   • Tighten the mounting bolts with the 8mm Allen wrench. Apply a small amount of grease to the bolts to prevent corrosion and ensure smooth operation.
   • Torque the bolts to the manufacturer’s recommended settings (usually between 150-200 Nm).
5. Check Alignment:
   • Confirm that the shock is sitting square in its mounts and there is no undue pressure or misalignment on the shock body.
6. Pump the Shock:
   • Using a shock pump, set the air pressure according to your rider weight and preferred riding conditions. Ensure the shock reaches the recommended sag before using it on the trail.

Adjustment of the Opal Air Rear Shock

Proper adjustment of your Opal Air rear shock can significantly enhance its performance based on your specific riding style and terrain. This shock offers a range of tunability, including compression, rebound, and air pressure adjustments.

Air Pressure Adjustment:

• Initial Setup: Start by adjusting the air pressure according to your weight. This typically ranges between 175-250 psi for most riders. Check the sag to ensure the correct amount of travel is used during riding. Aim for around 25-30% sag, depending on the type of riding.
• Fine-tuning: For more aggressive riding or smoother trails, adjust the pressure slightly higher or lower to find your ideal setup. Use a shock pump with a pressure gauge to make precise adjustments.

Compression and Rebound Adjustments:

• Compression: The Opal Air features a 3-position compression adjustment dial, allowing you to control how the shock behaves under different conditions. Set it to the open position for maximum sensitivity and plushness, the medium position for a balanced feel, or the firm position for climbing efficiency.
• Rebound: Adjust the rebound to control the shock’s return speed after compression. Start by turning the rebound dial to the middle setting. For faster rebound, decrease the setting (clockwise), and for slower rebound, increase the setting (counterclockwise). Find the balance that suits your riding style, typically by testing in small increments.

Lockout Function:

The Opal Air shock comes equipped with a lockout switch that completely disables the shock’s suspension travel. This feature is ideal for riders who want to maximize efficiency on smooth terrain, such as during climbs. Use the lockout function sparingly, as it reduces comfort and control on rougher trails.

Maintenance of the Opal Air Rear Shock

To ensure the longevity and performance of the Opal Air rear shock, routine maintenance is essential. Regular inspection and upkeep will keep the shock functioning at its best for years to come.

Basic Maintenance:

• Clean Regularly: After every ride, clean the shock’s exterior to remove dirt, mud, and grime. Use a soft cloth and mild soap to wipe down the shock. Avoid harsh chemicals that can damage seals.
• Check for Leaks: Inspect the shock for any signs of oil leakage or air loss. If you notice a drop in air pressure, it may indicate a seal issue that requires servicing.
• Lubricate Mounting Points: Apply a small amount of grease to the mounting bolts to ensure easy removal and to prevent rust or wear.
• Check for Wear: Regularly inspect the shock shaft and bushings for any signs of wear, particularly if the bike has been used heavily.

Servicing the Shock:

• Air Can Service: Depending on usage, DVO recommends servicing the air can every 50-100 hours of riding. This process involves removing the shock, draining the air, and cleaning the internals. Refill the air can with fresh oil and reassemble it for smooth operation.
• Full Shock Service: Every 200-300 hours of riding, or once a year, you should have a full service performed. This includes disassembling the shock, replacing seals and internal oil, and checking all components for wear.

Troubleshooting Common Issues

Even with regular maintenance, problems can sometimes arise with your Opal Air rear shock. Here are a few common issues and how to address them.

Low Air Pressure:

• Symptoms: If you notice a lack of sag or a bouncy ride, it may indicate low air pressure in the shock.
• Solution: Use a shock pump to add air to the shock, adjusting it to your recommended pressure. Double-check the sag to ensure it falls within the desired range.

No Rebound Adjustment:

• Symptoms: If the rebound feels too slow or fast, or if adjusting the dial doesn’t change the damping, the rebound circuit may be clogged.
• Solution: Perform basic maintenance to clean the shock. If the problem persists, consider a full service to replace any worn-out internals.

Unusual Noises:

• Symptoms: Clicking or knocking sounds coming from the shock during compression.
• Solution: Inspect the mounting bolts to ensure they are properly torqued and lubricated. Check the bushings and eyelets for wear, as these can sometimes cause noise if they are not in good condition.

Customization and Optimization for Better Performance

The Opal Air rear shock offers a range of customization options that allow you to fine-tune the shock for your specific riding needs. Whether you’re an aggressive rider seeking maximum plushness or a climber wanting more support, these adjustments can help you get the most out of your ride.

Adjusting for Terrain:

• Aggressive Terrain: For rough, technical trails with lots of drops and rocks, set the shock’s compression to the open setting and adjust the rebound for faster return. This will provide better absorption and control on tough terrain.
• Smooth Terrain: On smoother trails or fire roads, consider using the firm compression setting for more pedaling efficiency. The lockout function can also help reduce unwanted suspension movement.

Rider Weight:

• Riders who are heavier or lighter than average should adjust the air pressure accordingly. For lighter riders, reducing the air pressure will help achieve proper sag and ensure comfort. Conversely, heavier riders will require more air to prevent bottoming out and to maintain a responsive ride.

Comparison with Similar Models

When considering suspension upgrades, it’s important to compare the Opal Air rear shock with other models in its class. Compared to other high-end rear shocks like the Fox DPX2 or RockShox Super Deluxe, the Opal Air offers a superior level of adjustability and a smoother ride due to its innovative design and unique damping system.

Key Differences:

• Adjustability: The Opal Air offers more tuning options, particularly in terms of compression settings and overall air pressure customization.
• Weight: While slightly heavier than some models, the extra weight is compensated by the enhanced control and comfort provided by its advanced suspension system.
• Price: The Opal Air is positioned in the mid-to-high-end price range, offering excellent value for riders looking for a highly customizable and durable shock.

Compatibility with Other Drivetrain Components

The Opal Air rear shock is compatible with a wide variety of mountain bike frames, particularly those designed for enduro and trail riding. However, it is essential to check the shock’s eyelet size and travel range to ensure proper compatibility with your bike’s suspension design.

Frame Compatibility:

• The Opal Air typically fits 190mm to 230mm eyelet size, but always verify compatibility with your specific frame before purchasing.
• The shock’s 200mm and 220mm options provide ample travel for most aggressive and technical riding styles.

By understanding the key specifications and setup of the Opal Air, you can ensure a seamless integration with your current drivetrain and frame, offering a balanced, optimized ride.