Step-by-Step Rear Shock Oil Change for Ario RL

Posted on
in Uncategorized

The Ario RL rear shock by RockShox is designed to provide exceptional performance and comfort on a variety of terrain. Over time, the oil within the shock can degrade, which may affect its performance and smoothness. Performing an oil change on your Ario RL shock is a crucial part of maintenance to ensure it operates at peak performance. This guide will walk you through the necessary steps to perform an oil change on your Ario RL rear shock, with a focus on the correct techniques and tools.

Tools Required

  • 8mm Allen wrench [paid link]
  • 10mm Allen wrench [paid link]
  • RockShox 5wt or 10wt suspension oil (depending on your preference)
  • Shock pump
  • Torque wrench [paid link] (to ensure proper bolt tightness)
  • Small flathead screwdriver or pick (for oil seals)
  • Clean rag or towel
  • A container to catch used oil

Preparation

Before starting the oil change process, it is important to prepare the work area and ensure that all necessary tools are within reach. Here’s a list of things to keep in mind before getting started:

  1. Make sure the bike is secure, either on a work stand or placed upside down.
  2. Clean the area around the shock to avoid contaminants from entering the shock body.
  3. Have a clean workspace with a rag available to wipe away any oil spills or dirt during the process.
  4. Ensure you have the correct suspension oil type, which is typically RockShox 5wt or 10wt. Double-check your shock specifications to verify which oil is best for your riding style.

Step-by-Step Oil Change Procedure

Step 1: Remove the Rear Shock from the Bike

To begin the oil change, first remove the rear shock from the bike. This will give you access to the shock’s internals and allow you to work more efficiently.

  1. Use the 8mm Allen wrench to remove the bolts securing the shock to the frame. Be sure to keep these bolts and washers in a safe location.
  2. Gently remove the shock from its mount, ensuring that no components are damaged during this step.

Step 2: Disassemble the Shock

Once the shock is removed from the bike, begin disassembling it carefully. RockShox Ario RL rear shocks feature a damper that needs to be drained and refilled with oil.

  1. Use the 10mm Allen wrench to remove the air can from the shock body.
  2. Take extra care when separating the air can from the shock body. Be sure to place it on a clean surface as you don’t want any dirt entering the shock internals.
  3. Inspect the seals of the air can for any signs of wear or damage. If the seals are compromised, it’s a good idea to replace them to ensure the shock’s long-term performance.

Step 3: Drain the Old Oil

Now that the shock has been disassembled, you need to drain the old oil from the damper.

  1. Place the shock in a position where the damper oil can freely drain. The used oil will flow from the shock’s damper body. Make sure to have a container underneath to catch the oil.
  2. Allow the shock to drain completely. This may take a few minutes, depending on how much oil remains inside.
  3. Once drained, wipe away any residue with a clean rag. Be sure no old oil is left on the shock internals, as this could affect the performance of the new oil.

Step 4: Clean the Internals

With the shock oil drained, the next step is cleaning the shock internals to ensure there’s no dirt, debris, or old oil left inside.

  1. Use a small flathead screwdriver or pick to remove any leftover oil seals or dirt around the damper assembly.
  2. Wipe the shock internals with a clean rag. You may need to use a bit of solvent or suspension-specific cleaner to ensure all dirt is removed.
  3. Make sure there is no contamination in the internals before moving on to the next step. Any foreign material inside the shock will negatively affect its performance.

Step 5: Refill the Shock with Fresh Oil

With the shock internals clean, you are ready to refill the shock with new oil.

  1. Begin by pouring the new suspension oil into the damper body slowly.
  2. The correct oil level is important for maintaining proper shock function. Refer to the shock specifications for the exact oil volume required. Typically, the Ario RL shock requires about 140-160 ml of oil.
  3. Once the oil is in place, carefully reassemble the shock, ensuring that no air is trapped inside.
  4. Reinstall the air can onto the shock body, making sure to tighten it with the appropriate torque setting (usually around 30-40Nm, but always check your shock’s manual for specifics).

Step 6: Reassemble and Install the Shock

Now that the shock is properly refilled with oil, it’s time to put it back together and reinstall it on the bike.

  1. Reinstall the shock back into its mount on the frame. Use the 8mm Allen wrench to secure the shock with the mounting bolts.
  2. Tighten the bolts to the correct torque setting. Make sure the shock is securely fastened but avoid over-tightening, which could cause damage.
  3. Once the shock is mounted, use a shock pump to set the proper air pressure based on your weight and riding style.

Step 7: Test the Shock

After reinstallation, it’s important to test the shock to ensure everything is functioning properly.

  1. Begin by pushing on the shock to check for smooth movement. The shock should compress and rebound without any hesitation or stiction.
  2. Cycle through a few full compressions and rebounds to ensure the oil is distributed evenly throughout the damper.
  3. If you notice any issues with the shock’s performance, double-check that the oil level is correct and that all seals were properly installed.

Troubleshooting Common Set-Up Issues

  • Shock Isn’t Rebounding Properly: If the shock is slow to rebound or sticks, there may be air in the damper or the oil level might be too low. Ensure the oil level is correct and that the shock has been properly bled of air.
  • Excessive Noise or Stiction: If the shock is making strange noises or feels sticky, the seals may need replacing, or dirt could have entered the shock body during the disassembly process.
  • Loss of Air Pressure: If the shock loses air pressure quickly, check for any leaks around the air can or seals. Replacing worn seals can solve this issue.

Customization and Optimization for Better Performance

To enhance the performance of your Ario RL rear shock, consider the following tips:

  • Adjust the Air Pressure: Fine-tuning the air pressure in the shock can significantly affect how it performs. Be sure to set the air pressure according to your weight and riding style for optimal comfort and control.
  • Fine-Tune the Rebound: The rebound knob on the Ario RL allows you to adjust how quickly the shock returns to its original position after compression. Adjusting the rebound can improve control on rough terrain, making your ride smoother and more responsive.
  • Upgrade Seals: Over time, seals can wear out, leading to air and oil leaks. Upgrading to high-quality aftermarket seals can extend the life of your shock and improve its performance.

Comparison with Similar Models

When comparing the Ario RL to other rear shock models, it’s essential to focus on its specific features. Compared to other shocks in the RockShox lineup, such as the Monarch or Deluxe series, the Ario RL is an entry-level shock that offers solid performance for riders looking for a budget-friendly option. While it doesn’t have as many advanced features as the Deluxe or Monarch, the Ario RL excels in simple, effective damping control and is a great choice for riders who don’t need the high-end adjustments offered by pricier models.

Compatibility with Other Drivetrain Components

The Ario RL rear shock is designed to be compatible with a wide range of mountain bikes, especially those equipped with mid-range to high-end drivetrains. The shock works seamlessly with most standard suspension systems, though it’s essential to ensure the correct shock size (eye-to-eye and stroke length) for your bike frame. Always consult your bike’s specifications to confirm compatibility before performing any upgrades.