The DPX2 Factory rear shock from Fox is a premium shock designed to provide high-performance suspension for mountain bikes, particularly in aggressive riding and demanding terrain. Known for its advanced features, including highly adjustable damping and top-tier materials, the DPX2 Factory aims to deliver both control and comfort for riders seeking superior suspension. In this guide, we’ll explore the DPX2 Factory in-depth, covering its installation, maintenance, and troubleshooting, while also evaluating how it compares to similar models in the market.
Features and Benefits of the DPX2 Factory
The DPX2 Factory rear shock offers an impressive range of features that cater to professional riders and enthusiasts alike. Its most notable attributes include:
- Dual Piston System: This allows for precise and efficient compression damping control, providing better responsiveness and stability over rough terrain.
- Three-Position Adjustments: With the ability to switch between open, medium, and firm modes, the DPX2 Factory lets riders adjust the shock for different riding conditions, from technical descents to smooth climbs.
- Factory Series Coating: The shock is equipped with a Kashima coating that provides both durability and a smoother feel, reducing friction and improving overall performance.
- Tool-Free Adjustments: Riders can make quick and easy adjustments to the shock settings without the need for tools, making it ideal for fast changes during a ride.
These features contribute to a shock that can handle a wide range of mountain biking disciplines, including cross-country, trail riding, and enduro.
Installation of the DPX2 Factory Rear Shock
Proper installation of the DPX2 Factory is critical to ensure optimal performance. Here is a step-by-step guide to correctly install this rear shock onto your bike:
Tools Required:
- 8mm hex wrench
- Torque wrench [paid link]
- Shock pump (for air pressure adjustments)
- Grease
- Soft cloth or towel
Step-by-Step Installation Process:
- Remove the Old Shock: Use an 8mm hex wrench to remove the existing shock from your bike frame. Be sure to release any air pressure from the shock if it’s still installed.
- Prepare the New Shock: Before installation, check that the DPX2 Factory rear shock is correctly sized for your bike frame. Ensure the shock’s mounting hardware fits the eyelets of your bike’s suspension frame.
- Lubricate the Bushings: Apply a thin layer of grease to the shock’s mounting bushings. This helps reduce wear on the shock mount points and prevents creaking.
- Install the Shock: Position the shock in the frame and secure it using the proper hardware. Tighten the bolts using a torque wrench [paid link] to the manufacturer’s recommended torque settings (usually between 160-180 in-lb).
- Set the Air Pressure: Use a shock pump to add air to the shock according to your weight and riding style. Consult the DPX2 manual for the recommended starting air pressure.
- Test for Proper Function: Once the shock is installed, manually compress the shock to ensure smooth operation. Verify that the shock is seated properly and there is no unusual movement or play.
Adjusting the DPX2 Factory for Optimal Performance
One of the standout features of the DPX2 Factory rear shock is its adjustability. To get the most out of the shock, proper tuning is essential.
Compression and Rebound Damping
The DPX2 Factory offers external compression and rebound damping adjustments, which allow riders to fine-tune the shock’s response to various terrain. Start with the following baseline settings and adjust based on feedback from your ride:
- Compression Damping: For most riders, the open mode is best for downhill or technical trails, providing maximum plushness and control. The medium and firm modes are more suited for climbing and smoother trails, offering better pedaling efficiency.
- Rebound Damping: Adjust the rebound to control how quickly the shock returns after compression. Too fast can lead to bucking, while too slow can cause the shock to feel sluggish. A common starting point is a rebound setting that allows the shock to return just fast enough to keep up with the terrain.
Fine-Tuning the Air Pressure
The air pressure in the DPX2 Factory shock plays a significant role in its performance. It affects both the shock’s overall travel and the level of support it provides during rides. To achieve a balance between comfort and performance, adjust the air pressure to the recommended baseline for your weight, then tweak based on personal preference.
Maintenance and Troubleshooting the DPX2 Factory
Maintaining the DPX2 Factory is crucial for long-lasting performance. Regular maintenance ensures the shock continues to operate efficiently and that any potential issues are addressed before they become major problems.
Regular Maintenance Tasks:
- Clean the Shock After Every Ride: Use a soft cloth to wipe down the shock after each ride to remove dirt, mud, and debris. Pay special attention to the shock’s seals to avoid contamination that can lead to seal failure.
- Check for Leaks: Periodically inspect the shock’s air valve and bushings for any signs of leakage. If you notice a loss of air pressure over time, the seals might need to be replaced.
- Lubricate the Bushings: Every few months, apply a small amount of grease to the shock’s mounting hardware and bushings to keep them running smoothly.
- Service the Shock: Fox recommends servicing the DPX2 Factory rear shock every 125 hours of riding or at least once a year, whichever comes first. This includes oil changes and internal maintenance to ensure the shock operates at peak performance.
Troubleshooting Common Issues:
- Loss of Air Pressure: If the shock loses air pressure, check the air valve for leaks. If the issue persists, the seals may need replacement.
- Suspension Too Soft or Too Stiff: If the shock feels either too soft or too stiff, adjust the air pressure or damping settings. Sometimes, too much air pressure can result in a harsh ride, while too little can cause bottoming out.
- Creaking or Noisy Shock: Creaking noises often come from dirt or dry mounting points. Clean and lubricate the shock’s bushings and eyelets to resolve the issue.
Comparing the DPX2 Factory to Other Rear Shocks
When evaluating rear shocks, the DPX2 Factory is often compared to other high-end models from brands like RockShox and Cane Creek. Here’s a quick comparison:
- Fox DPX2 Factory vs RockShox Super Deluxe Ultimate: Both offer similar levels of performance, but the Fox DPX2 Factory is often preferred for its smoother, more controlled damping. The Super Deluxe Ultimate is known for a slightly higher level of adjustability, especially with its low-speed compression settings.
- Fox DPX2 Factory vs Cane Creek DBcoil IL: The DBcoil IL is a coil shock, providing a different feel compared to the DPX2 Factory’s air shock. While the DBcoil IL offers superior small bump sensitivity, the DPX2 Factory excels in weight savings and adjustability, making it a more versatile option for various trail conditions.
Compatibility with Other Drivetrain Components
The DPX2 Factory rear shock is compatible with a wide range of mountain bike frames and drivetrain setups. However, to ensure optimal performance, it’s important to ensure that your bike’s suspension and drivetrain are compatible.
- Frame Compatibility: The DPX2 Factory is designed to fit most modern mountain bike frames with a rear shock mount size of 200x51mm, 216x63mm, or 230x60mm. Always double-check your frame specifications before purchasing.
- Drivetrain Compatibility: While the rear shock does not directly impact the drivetrain, it’s important to match your suspension setup with the right drivetrain for a balanced ride. For example, heavier riders may benefit from a shock with more damping, paired with a robust drivetrain that can handle aggressive terrain.
In conclusion, the DPX2 Factory rear shock is an excellent choice for riders seeking a high-performance shock for a variety of mountain biking disciplines. Its advanced adjustability, smooth performance, and durability make it a top contender for those looking to optimize their ride.