Comparing Fenix AIR Rear Shocks to the Competition

Posted on
in Uncategorized

The Fenix AIR [paid link] rear shock by Fast Suspension has quickly gained popularity for its exceptional performance and innovative design. As more riders look for ways to enhance their bike setup, understanding how this rear shock compares to other models on the market becomes crucial. This guide provides a detailed analysis of the Fenix AIR [paid link], its installation and maintenance, and how it stacks up against its competitors.

Installation of the Fenix AIR Rear Shock

Installing the Fenix AIR rear shock is a straightforward process, but there are several key considerations to ensure proper setup and maximum performance.

Step-by-Step Installation

  1. Remove the Old Shock:
    • Begin by removing your existing shock, ensuring the bike is secure on a workstand.
    • Loosen the bolts that secure the shock to the frame and carefully remove it.
  2. Prepare the Fenix AIR Shock:
    • Before installation, verify that the shock is fully deflated to avoid pressure buildup during installation.
    • Apply a thin layer of grease to the shock mounting hardware to reduce wear and ensure smooth operation.
  3. Install the Fenix AIR:
    • Position the Fenix AIR rear shock in the frame and align the mounting holes with the shock’s eyelet.
    • Insert the bolts and tighten them according to the manufacturer’s recommended torque settings.
  4. Adjust Air Pressure and Damping:
    • After installation, adjust the air pressure based on your body weight and riding style. The Fenix AIR is designed for customizable air spring adjustments.
    • Fine-tune the damping settings (rebound and compression) to suit your terrain and riding preferences.
  5. Test Ride and Fine-Tune:
    • Once installed, take the bike for a test ride to ensure the shock functions properly.
    • If needed, adjust the air pressure or damping settings for optimal performance.

Maintenance of the Fenix AIR Rear Shock

Maintaining the Fenix AIR rear shock ensures it performs at its best over time. Regular maintenance is crucial for extending the shock’s lifespan and preventing issues during rides.

Basic Maintenance

  1. Cleaning:
    • After every ride, clean the shock with a soft cloth to remove dirt and debris.
    • Avoid using harsh chemicals or abrasive materials that could damage the shock’s surface.
  2. Air Spring Checks:
    • Regularly check the air pressure and adjust it as needed based on changes in riding conditions or body weight.
    • Inspect the air valve for any signs of leakage or wear.
  3. Damping Maintenance:
    • Periodically check the rebound and compression adjustments to ensure they function correctly.
    • If you notice any sticking or abnormal behavior, it may be necessary to perform a deeper internal service.
  4. Lubrication:
    • Apply appropriate lubrication to the shock’s moving parts as per the manufacturer’s recommendations. This helps prevent wear and ensures smooth operation.

Advanced Maintenance

  1. Seals and Suspension Fluid:
    • Every 50-100 hours of riding, or as recommended by Fast Suspension, the internal seals and suspension fluid should be replaced.
    • This process can be done by a qualified mechanic, as it requires disassembling the shock and recharging it with fresh oil.
  2. Full Service:
    • A full service, including inspection of internal parts and components, should be done annually to maintain the shock’s peak [paid link] performance.

Troubleshooting Common Set-Up Issues

The Fenix AIR rear shock is designed for ease of use, but occasionally, riders may encounter set-up issues that require troubleshooting.

Common Issues and Solutions

  1. Shock Not Holding Air Pressure:
    • If the shock is not holding air, check for leakage around the air valve or the shock’s seals. Apply soapy water to the valve area and look for bubbles.
    • If leaks are present, the valve or seals may need to be replaced.
  2. Excessive Rebound or Compression:
    • If the rebound or compression feels too stiff or soft, double-check your damping settings. Adjust the controls to match your desired ride characteristics.
    • If problems persist, consider having the shock serviced to inspect internal components.
  3. Unresponsive Suspension:
    • If the shock feels unresponsive or “dead,” it could indicate low suspension fluid or an issue with the air spring. In this case, a full service may be required.

Customization and Optimization for Better Performance

The Fenix AIR is built for customization, allowing riders to adjust various settings to optimize performance for their specific needs.

Air Spring Adjustments

One of the key features of the Fenix AIR is its ability to adjust the air spring to suit different riders. Adjusting the air pressure based on your weight and riding style can significantly impact comfort and control.

  • Higher Air Pressure: Provides a firmer feel, ideal for aggressive riders or those tackling rougher terrain.
  • Lower Air Pressure: Offers a more plush feel, perfect for those seeking comfort on smoother trails or riders with a lighter build.

Damping Fine-Tuning

The Fenix AIR allows for fine-tuning of rebound and compression damping. These adjustments can be tailored to the terrain and riding style:

  • Rebound Damping: Controls how quickly the shock returns to its original position after compression. Faster rebound is ideal for smoother, faster trails, while slower rebound can improve stability on rougher terrain.
  • Compression Damping: Adjusts how much the shock resists compression. A higher compression setting provides more support on rough terrain, while a softer setting allows for better absorption of small bumps.

Progressive Spring Curve

The Fenix AIR features a progressive spring curve, meaning that the shock becomes firmer as it compresses. This helps prevent bottoming out on larger impacts and provides a smoother overall feel on varied terrain.

Comparison with Other Rear Shocks

While the Fenix AIR offers a robust and customizable riding experience, it’s important to compare it with other popular rear shocks to understand its strengths and weaknesses.

Fenix AIR vs. Fox Float X2

  • Performance: Both shocks offer excellent performance, but the Fenix AIR’s progressive spring curve provides a smoother transition through the travel, making it better suited for varied terrain.
  • Customization: The Fenix AIR offers more detailed air spring and damping adjustments than the Fox Float X2, giving it an edge for riders who prioritize fine-tuned settings.
  • Weight: The Fox Float X2 is slightly lighter, but the Fenix AIR compensates for its weight with superior durability and comfort on aggressive trails.

Fenix AIR vs. RockShox Super Deluxe

  • Cost: The RockShox Super Deluxe is generally more affordable, making it a popular choice for riders on a budget. However, it lacks the same level of performance customization found in the Fenix AIR.
  • Build Quality: The Fenix AIR has a more robust design with better seals and a longer service interval, which contributes to its higher price.
  • Trail Performance: While the Super Deluxe offers a solid ride, the Fenix AIR’s enhanced damping and air spring adjustability make it the superior option for more demanding rides.

Understanding Compatibility with Other Drivetrain Components

The Fenix AIR rear shock is designed to work with most modern mountain bike frames, but compatibility with drivetrain components is essential for achieving optimal performance.

Frame Compatibility

The shock is compatible with a wide range of frames, but it’s important to ensure that the mounting dimensions of the shock match those of your bike’s frame. Verify the eye-to-eye length and stroke length requirements before purchasing.

Drivetrain Integration

The Fenix AIR rear shock works seamlessly with most modern drivetrains, including SRAM and Shimano systems. However, riders should be mindful of their bike’s geometry and suspension design, as changes to the shock could affect overall bike performance, especially in terms of chainring clearance and suspension kinematics.