The Super Deluxe Ultimate RCT from RockShox is one of the top-tier rear shocks designed to deliver exceptional performance and adjustability for riders looking for precision in their suspension setup. This shock provides a perfect balance between comfort, control, and responsiveness, making it a standout choice for serious cyclists. In this guide, we’ll explore the installation, maintenance, troubleshooting, and customization of the Super Deluxe Ultimate RCT, and offer a comparison to similar models.

Tools Required

• Shock pump
• Torque wrench [paid link]
• 2mm, 3mm, and 5mm Allen wrenches [paid link]
• Spanner wrench for preload adjustment
• Clean rag
• Suspension grease
• Isopropyl alcohol for cleaning
• Plastic brush

Installation of the Super Deluxe Ultimate RCT

Mounting the Shock

Installing the Super Deluxe Ultimate RCT rear shock requires careful attention to ensure proper fitment and performance.

1. Prepare the Frame: Begin by ensuring the mounting points on the bike frame are clean and free of debris. You can use a clean rag and isopropyl alcohol to wipe down the areas where the shock will be mounted.
2. Position the Shock: Align the shock with the mounting points on the rear triangle of the bike. The Super Deluxe Ultimate RCT is designed to fit most modern mountain bike frames, but make sure your bike’s geometry is compatible with this model.
3. Secure the Mounting Hardware: Install the provided mounting hardware to secure the shock in place. Use a torque wrench [paid link] to tighten the bolts according to RockShox’s specifications to avoid damaging the frame or shock.
4. Check for Clearance: Ensure the shock is not interfering with any other components such as the frame, brake lines, or seat post. There should be enough clearance for the shock to function correctly without obstruction during the full range of motion.

Setting the Sag

After installing the shock, the next important step is setting the correct sag.

1. Attach the Shock Pump: Use the shock pump to add air to the shock. Check the recommended air pressure range based on your weight and riding style (typically located on the shock’s label).
2. Sit on the Bike: Put on your riding gear and sit on the bike. The shock should compress under your weight. You should aim for around 25-30% sag, depending on your riding style.
3. Adjust Air Pressure: If the sag is too high or too low, adjust the air pressure accordingly. Recheck the sag until it’s within the ideal range.

Adjusting the Super Deluxe Ultimate RCT

One of the standout features of the Super Deluxe Ultimate RCT is its fine-tuned adjustability. The shock provides a variety of settings to optimize your ride.

Compression and Rebound Damping

The Super Deluxe Ultimate RCT is equipped with RockShox’s RCT damping system, allowing riders to fine-tune both compression and rebound to suit their preferences.

1. Compression Adjustment: The compression knob, located at the top of the shock, controls the shock’s resistance to compression. For more control and less dive, increase the compression. For a more plush, absorbing ride, decrease the compression.
2. Rebound Adjustment: The rebound knob at the bottom of the shock controls how quickly the shock returns to its original position after compression. Adjust it to suit your riding style—slower rebound for a more controlled ride, or faster rebound for more pop and agility.

Preload Adjustment

Preload adjustments are essential for setting the initial spring tension on the shock.

1. Using the Spanner Wrench: Use the spanner wrench to adjust the preload ring on the shock. This controls the amount of initial compression on the shock and can be fine-tuned to adjust how the bike handles in certain conditions.
2. Set for Your Weight: For heavier riders or more aggressive riding styles, increase the preload. For lighter riders, reduce the preload to allow the shock to work more effectively during travel.

Maintenance of the Super Deluxe Ultimate RCT

Regular maintenance is essential to keep the Super Deluxe Ultimate RCT functioning at its best. Here’s what you need to know about maintaining this rear shock.

Cleaning

Over time, dirt and grime can accumulate on the shock, affecting its performance. To clean the shock:

1. Wipe the Shock: Use a clean rag and mild soap to wipe down the shock, being careful not to get any soap or water inside the shock.
2. Brush the Seals: Use a plastic brush to clean the seals. Ensure there’s no dirt buildup that could cause wear or damage.

Lubing the Shock

The shock’s seals and moving parts need to be lubricated regularly to prevent wear and tear.

1. Lubricate the Air Shaft: Apply a thin layer of suspension grease to the air shaft. This prevents the seals from drying out and reduces friction, ensuring smooth performance.
2. Check the Oil Levels: Occasionally, the oil inside the shock needs to be replaced. Refer to the RockShox service manual for the recommended oil change interval.

Annual Service

The Super Deluxe Ultimate RCT rear shock should undergo a full service once a year or after every 50 hours of riding, whichever comes first. During this service, the shock is disassembled, cleaned, and the seals and oil are replaced.

Troubleshooting Common Set-Up Issues

Lack of Rebound

If the shock is not returning quickly enough or feels sluggish, the rebound setting might be too slow.

• Solution: Turn the rebound knob counterclockwise to increase the rebound speed. If that doesn’t solve the issue, check the oil levels as low oil can also cause poor rebound.

Insufficient Compression

If the shock is bottoming out too easily, it may not be providing enough compression support.

• Solution: Increase the compression by turning the compression knob clockwise. You may also need to adjust the air pressure if the sag is too high.

Noisy Shock

If your shock starts making a noise, like squeaking or clunking, it could indicate a lack of lubrication or debris in the seals.

• Solution: Clean and lubricate the seals, and inspect for any damage or wear. Ensure the mounting hardware is tight and properly aligned.

Customization and Optimization

The Super Deluxe Ultimate RCT offers a wide range of customization options to optimize your ride:

1. Spring Rate: The shock allows for customization of the spring rate by adjusting the air pressure. Experimenting with different pressures can provide a more personalized ride feel, whether you prefer more plushness or a firmer setup.
2. Fine-Tuning the Damping: By adjusting the compression and rebound damping, you can fine-tune how the shock handles various terrain, from smooth trails to rough descents.

Comparison with Similar Models

When comparing the Super Deluxe Ultimate RCT to other rear shocks, such as the Fox Float X2 or the RockShox Monarch Plus, a few key differences stand out:

• Customization: The Super Deluxe Ultimate RCT offers more precise adjustment options, including the new RCT damping system, which allows for finer compression and rebound control.
• Weight: The Super Deluxe Ultimate RCT is lighter than some of its competitors, providing a more responsive ride.
• Price: While more expensive than models like the RockShox Monarch Plus, the Ultimate RCT justifies its price with superior performance and tuning capabilities.

Compatibility with Other Drivetrain Components

The Super Deluxe Ultimate RCT is designed to be compatible with most modern mountain bike frames and drivetrain setups, including Shimano and SRAM systems. However, always double-check the frame’s specifications and the shock’s mounting requirements before purchasing to ensure compatibility with your bike’s geometry and drivetrain components.

With its versatile features, superior damping technology, and precise adjustability, the Super Deluxe Ultimate RCT rear shock provides a high-performance upgrade for riders looking to optimize their suspension setup. Whether you’re tackling rough terrain or navigating technical trails, this shock stands out as a reliable choice for enhancing your ride.