Upgrading Your Suspension with Monarch Plus RC3 Rear Shocks

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Upgrading your rear suspension can significantly improve your bike’s performance and comfort, especially if you’re an avid rider who frequently tackles rough trails. The Monarch Plus RC3 from RockShox is an excellent choice for enhancing your bike’s ride quality. Known for its versatility and top-tier performance, this rear shock offers excellent adjustments and smooth damping, making it a favorite among riders looking to fine-tune their suspension to meet specific needs. This guide provides a detailed, step-by-step approach for installing, maintaining, and troubleshooting the Monarch Plus RC3 rear shock.

Tools Required

  • 5mm Allen key
  • Torque wrench [paid link]
  • Suspension oil
  • Rag or cloth
  • Rear shock pump
  • Grease (for mounting hardware)
  • Bushing press tool (if needed)

Installation of the Monarch Plus RC3 Rear Shock

Installing the Monarch Plus RC3 rear shock requires precision to ensure smooth operation and optimal performance. Here’s a step-by-step guide to installing the shock onto your bike frame.

  1. Remove the Old Shock
    • Use a 5mm Allen key to remove the bolts securing the old rear shock to the frame.
    • Carefully take the shock off the frame and set it aside. If the shock has been in use for a while, inspect the mount for any wear.
  2. Prepare the New Shock
    • Check the Monarch Plus RC3 shock to ensure it has the correct size and fitment for your bike frame. The shock’s eye-to-eye length and stroke must match the specifications for your bike’s rear triangle.
    • Lightly grease the shock’s mounting hardware to prevent any squeaking and ensure easy installation.
  3. Install the Monarch Plus RC3 Shock
    • Position the shock in the frame’s rear triangle, aligning the mounting holes with the shock’s eyelets.
    • Insert the bolts and tighten them with a 5mm Allen key. Be sure to torque them to the manufacturer’s recommended settings (usually around 150-200 inch-pounds) using a torque wrench [paid link].
  4. Pump the Shock to the Recommended Pressure
    • Use a rear shock pump to inflate the Monarch Plus RC3 shock to the recommended pressure, depending on your rider weight and the type of riding you plan to do. This pressure is typically between 180 psi and 300 psi, but refer to the shock’s manual for specific guidance.
  5. Check the Shock’s Functionality
    • Compress the shock by hand to check for smooth motion and to ensure there’s no binding or abnormal resistance.

Adjustments and Customization for Better Performance

The Monarch Plus RC3 rear shock is equipped with a range of adjustability features, allowing you to fine-tune its performance. These adjustments include:

Rebound Adjustment

  • The rebound knob controls the shock’s return speed after compression. Adjust the rebound to suit your riding style: faster for smoother trails, slower for more aggressive terrain.
  • Turn the knob clockwise to slow the rebound and counterclockwise to speed it up.

Compression Damping Adjustment

  • The Monarch Plus RC3 features a three-position compression adjustment: Open, Pedal, and Lock.
  • Open provides maximum plushness and is best for aggressive trail riding.
  • Pedal helps reduce pedal bob while climbing, providing a more efficient ride.
  • Lock completely firms up the shock for smooth road riding or while you’re on flat terrain.

Sag Setup

  • Set the correct sag by measuring the amount the shock compresses under your body weight. A proper sag is typically around 25-30% of the shock’s total travel, which will give you the best balance between comfort and performance.
  • Adjust the air pressure using the rear shock pump to reach the desired sag.

Maintenance and Care of Monarch Plus RC3 Rear Shock

To keep your Monarch Plus RC3 rear shock in top working condition, regular maintenance is essential. Here are key maintenance tasks to follow:

Cleaning

  • After every ride, wipe down the shock with a clean rag to remove dirt, dust, and grime. Be sure to avoid using harsh solvents that can damage the shock’s finish.
  • Inspect the shock’s seals regularly for any signs of wear or oil leakage.

Lubrication

  • Grease the mounting hardware periodically to ensure smooth installation and removal. This also prevents corrosion, especially if you ride in wet conditions.
  • If the shock starts feeling sticky or less responsive, it may need a light lubrication of the damper shaft or seals.

Air Pressure Check

  • Regularly check the air pressure in your shock to ensure it remains at the ideal level. Over time, air can escape, leading to a loss in performance.
  • Always adjust air pressure in small increments, checking the shock’s feel after each adjustment.

Seal Replacement

  • Seals wear out over time, especially if the bike is frequently used in muddy or wet conditions. Replace seals as needed to maintain proper performance and prevent leakage.

Troubleshooting Common Setup Issues

While the Monarch Plus RC3 is a reliable shock, some common setup issues may arise. Below are solutions to some frequently encountered problems:

Shock Not Rebounding Properly

  • If the shock is not returning to its full position, it could be due to a low air pressure setting or too slow rebound damping.
  • Check the air pressure and adjust the rebound knob as needed.

Excessive Noise from the Shock

  • Noise, such as squeaking or creaking, can result from improperly lubricated mounting hardware. Grease the hardware and check for any loose bolts.
  • If noise persists, inspect the shock for any damage or excessive wear.

Shock Bottoming Out Too Easily

  • Bottoming out occurs when the shock compresses fully, indicating too low an air pressure setting or insufficient compression damping.
  • Increase air pressure or adjust the compression damping to a firmer setting to prevent bottoming out.

Comparison with Similar Models

While the Monarch Plus RC3 is a premium rear shock, it’s important to understand how it compares with other models in its class. Here’s a comparison to help you make an informed decision:

Monarch Plus RC3 vs. RockShox Super Deluxe

  • The Super Deluxe offers a slightly more refined damping system with a better range of adjustability. It also features a DebonAir air spring for improved small-bump compliance and comfort on aggressive trails.
  • The Monarch Plus RC3, however, offers a more affordable price point while still providing excellent performance for all-mountain and trail riders.

Monarch Plus RC3 vs. Fox Float X2

  • The Fox Float X2 features a more advanced dual chamber air spring design, allowing for superior support on steep and technical terrain. The shock also has a more precise compression damping system for fine-tuning.
  • However, the Monarch Plus RC3 is lighter and more responsive on moderate terrain, making it a better option for riders who prioritize performance and value.

Compatibility with Other Drivetrain Components

The Monarch Plus RC3 is compatible with most modern bike frames designed for performance rear shocks, including those with progressive or linear suspension curves. However, to achieve optimal performance, ensure that your bike’s rear triangle has the correct shock mount specifications (e.g., shock eyelet size, shock stroke, and eye-to-eye length).

For maximum compatibility, check the bike manufacturer’s recommendations regarding suspension upgrades. Additionally, the Monarch Plus RC3 can be paired with various drivetrain components, as it’s engineered to provide smooth damping and adjustability in different riding conditions.