Servicing Your Super Deluxe Ultimate RC2T Rear Shock: Tools and Tips

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Maintaining the RockShox Super Deluxe Ultimate RC2T rear shock is crucial to ensure smooth performance and longevity on your mountain bike. The Super Deluxe Ultimate RC2T is known for its superior adjustability, featuring both high and low-speed compression controls and a rebound setting. Regular servicing and maintenance will keep it working efficiently through all your off-road adventures. This guide provides you with everything you need to know about servicing your Super Deluxe Ultimate RC2T, from installation to troubleshooting, with expert-level tips.

Tools Required

Before beginning the service, ensure you have all the necessary tools. Here’s a list of what you’ll need:

  • 3mm, 5mm, and 8mm Allen wrenches [paid link]
  • Torque wrench [paid link] (with 5Nm and 10Nm settings)
  • 24mm and 30mm sockets (for mounting hardware)
  • Shock pump
  • RockShox suspension oil (appropriate grade)
  • Rags and cleaning supplies
  • Suspension grease
  • Schrader valve tool
  • Small plastic scraper or spatula
  • RockShox service kit (for oil seals and O-rings)
  • Sealant (for shock body seals)

Installation of the Super Deluxe Ultimate RC2T Rear Shock

Installing the RockShox Super Deluxe Ultimate RC2T rear shock properly ensures that it performs at its best and lasts longer. Follow these steps for a clean and precise installation:

  1. Prepare the Frame:
    • Clean the rear triangle of your bike, ensuring that all mounting surfaces are free of dirt and debris. This helps prevent contamination during installation.
    • Check the frame’s shock mount hardware to make sure it is not damaged and is properly greased.
  2. Install the Shock:
    • Align the shock’s eyelets with the mounting points on the bike frame.
    • Secure the shock in place using the appropriate hardware. Ensure the bolts are tightened to the manufacturer’s recommended torque (typically 10Nm for the shock mounting bolts).
  3. Attach the Compression and Rebound Controls:
    • The Super Deluxe Ultimate RC2T features an adjustable compression dial and rebound knob. Set these controls to your preferred settings after installation.
  4. Pump the Shock to the Correct Pressure:
    • Use a shock pump to inflate the Super Deluxe Ultimate RC2T to the recommended pressure based on your rider weight and shock specifications. Check the shock’s sag, ensuring it falls within the ideal range (usually around 25-30% of the shock’s total travel).

Adjusting and Fine-Tuning the RC2T

The RC2T features high and low-speed compression controls and a rebound dial. Fine-tuning these settings will provide optimal performance for different riding conditions.

High-Speed Compression

  • This adjustment affects how the shock responds to quick, sharp hits, such as drops or large rocks. Start by turning the dial counterclockwise to soften the compression, and then adjust it clockwise to stiffen it based on your preferences and the terrain you’re riding.

Low-Speed Compression

  • The low-speed compression dial controls how the shock behaves under slow, steady forces, like pedaling or body movements. Start with it at mid-range and adjust from there depending on how the shock feels during climbs or technical trails.

Rebound Adjustment

  • Rebound controls how quickly the shock returns after compression. Too fast a rebound can cause the shock to “buck,” while too slow may cause the suspension to feel too stiff. Adjust the rebound knob based on your riding style, ensuring smooth transitions through bumps and hits.

Maintenance of the Super Deluxe Ultimate RC2T Rear Shock

Regular maintenance is essential to keep the Super Deluxe Ultimate RC2T functioning optimally. Here’s how to maintain it over time:

  1. Clean the Shock Regularly:
    • After each ride, wipe down the shock to remove dirt, mud, and debris. Use a rag to clean the shock body and the eyelets. Avoid using a pressure washer as it can force dirt into the seals.
  2. Check for Leaks:
    • Inspect the shock’s seals and bushings for any signs of oil leaks. If you notice oil around the shock’s shaft or body, it’s time to replace the seals.
  3. Grease the Shock Mounts:
    • Apply a thin layer of suspension grease to the shock’s eyelets and the mounting hardware during servicing. This reduces friction and ensures a smoother ride.
  4. Service the Shock Internals:
    • RockShox recommends a full service for the Super Deluxe Ultimate RC2T every 50 hours of use or at least once a year, whichever comes first. This service involves disassembling the shock, cleaning the internal components, and replacing the oil seals and bushings.
  5. Oil and Seal Replacement:
    • Drain the old oil, and replace it with fresh suspension oil of the correct grade. You will also need to replace the internal seals during the service. RockShox offers dedicated service kits that contain the required O-rings, seals, and oil for the Super Deluxe Ultimate RC2T.

Troubleshooting Common Set-Up Issues

Even with the best care, you may encounter a few issues with your Super Deluxe Ultimate RC2T. Here’s how to troubleshoot some common problems:

  1. Loss of Pressure or Sag Issues:
    • If your shock is losing pressure or sagging too much, check for air leaks around the Schrader valve. Ensure the valve is tight and the O-ring is intact. If the shock continues to lose pressure, you may need to replace the valve or the shock seals.
  2. Unresponsive Rebound or Compression Dials:
    • If the compression or rebound dials are not responding properly, it could indicate internal damage or debris buildup. Consider a full internal service to inspect the damper assembly and replace any worn parts.
  3. Stiff or “Locked-Out” Shock:
    • If your shock feels stiff or seems to be stuck in a “locked-out” position, check the compression dials for settings that might be too stiff. If everything seems correct, inspect the shock for any internal damage or blockages that might need addressing.

Customization and Optimization for Better Performance

To get the most out of your Super Deluxe Ultimate RC2T, consider customizing it to fit your riding style and preferences.

  • Sag Settings: Adjust the shock pressure to fine-tune the sag, ensuring optimal performance. For aggressive riding, you may prefer a lower sag percentage for a firmer ride. For technical climbs or smoother trails, a higher sag percentage offers better absorption.
  • Air Volume Adjustments: Some riders may opt to change the air volume spacers inside the shock for a more progressive feel. This can prevent bottoming out on big hits while still providing a plush feel.
  • Fine-Tune Compression Damping: If you’re riding on very technical terrain, experimenting with the low-speed compression adjustments can help control suspension movement while keeping traction.

Comparing the Super Deluxe Ultimate RC2T with Other Models

When comparing the RockShox Super Deluxe Ultimate RC2T to other rear shock models in the market, such as the Fox Float X2 or the DVO Jade X, it’s clear that the RC2T excels in its tuning flexibility. The high and low-speed compression adjustments, coupled with the RC2T’s rebound control, give riders a high degree of customization. Additionally, RockShox’s proprietary hydraulic damping system ensures a smooth and consistent feel across different terrain.

In contrast, the Fox Float X2 offers a similar range of adjustability but might be more suited for riders who prefer a lighter, more linear feel. On the other hand, the DVO Jade X is favored by some for its highly customizable coil shock performance, though it does not offer the same range of air volume adjustment as the RC2T.

Compatibility with Other Drivetrain Components

The RockShox Super Deluxe Ultimate RC2T is designed to work seamlessly with a wide range of modern mountain bike drivetrains. It is especially compatible with 12-speed drivetrains, as its air-spring and damping system provide a balanced ride, complementing the responsiveness of modern gearing systems. The shock’s performance can be optimized further by adjusting your suspension settings based on your drivetrain configuration.

If you’re using a high-performance drivetrain, consider matching your shock’s settings to the demands of your gearing and bike geometry for the best performance on technical climbs, descents, and everything in between.