Preventative Maintenance for Monarch Plus RC3 Rear Shocks

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The RockShox Monarch Plus RC3 rear shock is a premium choice for mountain bikers who demand exceptional performance and adjustability. As with any high-performance bike component, proper maintenance is essential to ensure it performs optimally throughout its lifespan. Preventative maintenance for the Monarch Plus RC3 focuses on regular checks, lubrication, and adjustments to keep the shock running smoothly and extend its life.

Tools Required

  • 5mm and 6mm Allen wrenches [paid link]
  • Torque wrench [paid link]
  • Shock pump
  • Grease
  • RockShox suspension oil
  • Soft rag or towel
  • Isopropyl alcohol
  • 3mm Allen wrench [paid link] (for the rebound adjuster)
  • Suspension cleaner (optional)

Installation of the Monarch Plus RC3

When installing the Monarch Plus RC3 rear shock on your bike, proper alignment and torque are crucial to avoid damaging the shock or the frame.

  1. Remove the Old Shock: Begin by removing the old shock, if necessary. Use a 5mm Allen wrench [paid link] to loosen the bolts holding the shock in place. Keep track of any washers or spacers used.
  2. Install the New Shock: Align the Monarch Plus RC3 with the mounts on your bike’s frame. Ensure the shock’s eyelets fit correctly in the mounts. Insert the shock bolts and hand-tighten them.
  3. Torque the Bolts: Use a torque wrench [paid link] to tighten the bolts to the manufacturer’s specified torque. This ensures that the shock is securely attached and prevents damage from under-tightening or over-tightening.
  4. Install the Air Canister: Attach the shock’s air canister to the shock body. Make sure it’s securely seated before moving to the next step.
  5. Set the Sag: Before riding, use a shock pump to set the sag to the recommended pressure based on your weight and riding style. This is crucial for ensuring proper shock performance.

Routine Maintenance and Adjustment

Regular maintenance of the Monarch Plus RC3 rear shock ensures it functions at its best, preserving its lifespan and performance.

Cleaning the Shock

  • Wipe the Shock: After every ride, use a soft rag or towel to wipe down the shock. Focus on the stanchion and the shock body. If necessary, use isopropyl alcohol to remove dirt or grease.
  • Check for Dirt or Debris: Inspect the shock for any accumulated dirt, debris, or mud. Pay attention to the shock seals, as they can be compromised by dirt.

Lubrication

  • Lubricate the Seals: Periodically, grease the seals around the shock body. Use a small amount of suspension grease on the seals to reduce friction and prevent leaks. Be careful not to apply excess grease, as it can attract dirt.
  • Check for Leaks: Look for any signs of oil leakage around the shock’s seals or air canister. If you notice leaks, it’s time for a more thorough service.

Rebound and Compression Adjustments

  • Rebound Adjustment: Adjust the rebound to your preferred setting by using the 3mm Allen wrench on the rebound knob. A faster rebound setting is suitable for more aggressive riding, while a slower setting provides more control for technical terrain.
  • Compression Damping: Adjust the compression to control how the shock responds to different impacts. The Monarch Plus RC3 offers both low and high-speed compression adjustments. Fine-tune these settings to your preferences based on the terrain you’re riding.

Troubleshooting Common Issues

Even with regular maintenance, issues can occasionally arise. Here are some common problems with the Monarch Plus RC3 and how to troubleshoot them.

Poor Performance or Lack of Travel

If you notice that the shock isn’t absorbing impacts effectively or feels “stiff,” it could be due to several factors:

  • Check the Air Pressure: Verify that the air pressure is correct for your weight and riding style. Under-inflated shocks can result in poor performance.
  • Inspect for Leaks: If there’s a loss of air pressure, inspect the shock for leaks, especially around the air canister and seals. If leaking is present, the seals might need replacing.

Unusual Noises

Hearing unusual noises such as creaking or knocking during rides can be a sign of issues:

  • Check Shock Mounting Bolts: Loose bolts can cause unwanted noise. Tighten them to the specified torque.
  • Inspect the Seals: Worn or dry seals can cause noise. Ensure the seals are lubricated and in good condition.
  • Look for Frame Contact: Ensure that the shock is not making contact with the frame in a way that creates noise. A shock spacer may be needed to prevent such contact.

Customization and Optimization

The Monarch Plus RC3 is highly customizable, allowing riders to adjust it for optimal performance. Customization mainly involves adjusting the shock’s air pressure, rebound, and compression settings.

  • Air Pressure: Adjust the air pressure based on your weight and riding style. Lower pressures are often suitable for lighter riders or more technical, downhill-focused riders. Conversely, heavier riders may need higher pressures for proper support.
  • Compression Adjustments: Fine-tune the high and low-speed compression settings. Higher compression settings can be useful for aggressive riding or smoother terrain, while lower settings allow for better performance on rougher trails.
  • Rebound Settings: Depending on your riding style, adjust the rebound to your preference. A quicker rebound may be necessary for aggressive riding, while slower rebound settings provide better control.

Comparison with Similar Models

The Monarch Plus RC3 is often compared with other rear shocks like the RockShox Super Deluxe and the Fox Float DPX2. Here’s a quick comparison:

  • Monarch Plus RC3: Offers a smooth, consistent ride with a focus on user adjustability. Its dual compression settings make it ideal for riders who want a responsive ride.
  • RockShox Super Deluxe: The Super Deluxe has a more progressive feel with a slightly firmer response. It also comes with a higher-end option for aggressive riders.
  • Fox Float DPX2: Known for its lightweight design, the Fox Float DPX2 offers excellent performance and ease of adjustment. However, it may not be as robust in performance as the Monarch Plus RC3 for larger, heavier riders.

Compatibility with Other Drivetrain Components

The Monarch Plus RC3 is compatible with most modern mountain bike drivetrains, thanks to its standard shock mount dimensions. However, when installing the shock, always verify compatibility with your bike’s frame and suspension system. Be sure to check the shock’s eyelet size, as well as any specific mounting requirements from your bike manufacturer.

Conclusion

The RockShox Monarch Plus RC3 is a highly adjustable and durable rear shock, but to maintain its excellent performance, regular preventative maintenance is key. By following the steps outlined above for cleaning, lubrication, and adjustments, you can ensure that your shock performs optimally for many rides to come. With proper care, this shock will continue to provide exceptional support and control on your mountain biking adventures.