The Marzocchi Bomber Air [paid link] rear shock is designed to enhance your mountain bike’s performance by providing superior suspension control. This detailed guide will walk you through the installation, adjustment, maintenance, and troubleshooting of the Bomber Air [paid link] rear shock, ensuring you can maximize its potential for a smoother, more responsive ride. Additionally, we’ll explore how to optimize this shock for your specific needs and how it compares to similar models in the market.
Tools Required
- Shock pump (compatible with the Bomber Air)
- 5mm and 6mm Allen wrenches [paid link]
- Torque wrench [paid link]
- Grease (for mounting hardware)
- Measuring tape (for setting the sag)
- Flathead screwdriver (for adjusting damping)
- Cleaning supplies (e.g., rag, mild soap, water)
Installation of Bomber Air Rear Shock
The installation of the Marzocchi Bomber Air rear shock requires careful attention to detail to ensure that everything fits correctly and functions as expected. Here are the general steps for installing the rear shock:
- Remove the Existing Shock:
- Use a 5mm Allen wrench [paid link] to remove the bolts securing the current rear shock to the frame. Keep these bolts as you’ll reuse them with the Bomber Air shock.
- Remove the shock from the frame carefully.
- Prepare the New Shock:
- Before mounting the Bomber Air shock, check the mountings for any signs of wear or damage.
- Apply a thin layer of grease to the shock mounting bolts to ensure smooth installation and prevent seizing.
- Install the Bomber Air Shock:
- Position the Bomber Air shock into the frame, aligning the mounting hardware with the shock’s eyelets.
- Secure the shock with the previously removed mounting bolts and tighten them using a 6mm Allen wrench [paid link] to the manufacturer-recommended torque specifications.
- Set Initial Air Pressure:
- Use a shock pump to inflate the air chamber to the recommended pressure based on your weight and riding style. This is crucial to get the desired performance from the shock.
- Final Check:
- Ensure the shock is mounted securely and that the air pressure is properly set. Verify that all bolts are tightened correctly and there is no play in the shock.
Adjustment and Optimization
To get the most out of the Bomber Air rear shock, fine-tuning the settings is essential. Here’s how you can adjust the shock for optimal performance:
Setting the Sag
Sag is the amount the shock compresses under your body weight, and it is critical for achieving proper suspension performance.
- Preload Adjustment:
- Start by setting the recommended air pressure for your weight, as indicated by the shock manufacturer.
- Measure the distance between the shock’s eyelets with a measuring tape when you are off the bike, and then again when you are sitting in your riding position.
- Adjust the air pressure accordingly to achieve the correct sag, which is typically around 30% of the shock’s total travel.
Adjusting Compression Damping
Compression damping controls how quickly the shock compresses under load. The Bomber Air shock features an external dial for fine-tuning this setting.
- Turning the Damping Dial:
- Rotate the dial clockwise for more compression damping (less sensitivity to small bumps).
- Rotate counterclockwise for less compression damping (greater sensitivity).
Adjusting Rebound Damping
Rebound damping affects how quickly the shock returns to its original position after being compressed. This is vital for controlling the shock’s movement and preventing the bike from feeling too “bouncy.”
- Adjusting the Rebound Dial:
- Use the rebound dial to set the speed at which the shock extends. Turn the dial clockwise to slow the rebound or counterclockwise to speed it up.
- Start with a neutral setting and adjust depending on the trail conditions. A slower rebound is better for high-speed rough terrain, while a faster rebound is suited for smoother trails.
Troubleshooting Common Set-Up Issues
Even after proper installation, you may encounter a few common issues with your Bomber Air rear shock. Here’s how to address them:
Shock Bottoming Out
If the shock bottoms out frequently, it may be due to insufficient air pressure or excessive sag.
- Solution: Increase the air pressure in the shock to reduce sag and prevent bottoming out. Adjust your compression damping as well to add more resistance to compression.
Excessive Stiffness
If the rear shock feels too stiff or unresponsive, it could be caused by too much air pressure or too much compression damping.
- Solution: Decrease the air pressure slightly to achieve the correct sag. Additionally, back off the compression damping to allow the shock to react more freely to terrain variations.
Rebound Issues
If the shock rebounds too quickly or too slowly, it can affect the handling and comfort of the ride.
- Solution: Adjust the rebound damping to a more appropriate setting, keeping in mind that different trail conditions may require different rebound speeds.
Customization and Performance Optimization
One of the best features of the Bomber Air rear shock is its ability to be finely tuned to your riding preferences. Here’s how to optimize the shock for various riding styles:
For Aggressive Riders
- Increased Air Pressure: Aggressive riders may prefer a stiffer shock with higher air pressure to handle larger hits and jumps.
- Higher Compression Damping: Set the compression damping higher to reduce the amount of shock movement during fast and aggressive riding.
For Trail and Enduro Riders
- Balanced Air Pressure and Sag: Keep the air pressure within the recommended range for a balanced feel that can handle both technical climbs and descents.
- Moderate Compression Damping: A medium setting for compression damping provides a mix of sensitivity for bumps while maintaining control on larger impacts.
For Cross-Country Riders
- Lower Air Pressure: Cross-country riders benefit from a lighter, more responsive feel, so reducing the air pressure slightly allows for better sensitivity and comfort.
- Lower Compression Damping: Less compression damping allows for a more active shock, improving traction on varied terrain.
Compatibility with Other Drivetrain Components
The Bomber Air rear shock is compatible with most modern full-suspension mountain bikes. However, ensuring compatibility with other drivetrain components is essential for maintaining smooth performance:
- Dropper Seatposts: Ensure that the shock does not interfere with the dropper seatpost when compressed. If necessary, adjust the mountings for proper clearance.
- Brake and Tire Clearances: Make sure there is enough space for your tires and brake lines when adjusting the shock, particularly on full-suspension bikes with tight tolerances.
- Frame Fit: Verify that the shock fits your bike’s frame, particularly in terms of eyelet size and mounting configuration. Most frames will work with the Bomber Air, but it’s always wise to double-check.
Comparison with Similar Models
The Marzocchi Bomber Air rear shock competes with other high-performance shocks such as the Fox Float DPX2 and the RockShox Super Deluxe. Here’s how it compares:
- Weight: The Bomber Air is typically lighter than the Fox Float DPX2, making it a better choice for weight-conscious riders.
- Price: The Bomber Air is often more affordable than both the Fox and RockShox models, offering a good balance of performance and value.
- Performance: The Bomber Air excels in smoothness and control, particularly in rougher conditions, but it may not offer as many fine-tuned features as the higher-end models from Fox or RockShox.
Ultimately, the Bomber Air provides exceptional performance for its price and is an excellent choice for riders who want a reliable, adjustable rear shock without breaking the bank.
By following this guide, you can ensure that your Marzocchi Bomber Air rear shock is properly installed, adjusted, and maintained for the best possible performance. Whether you’re setting it up for trail riding, aggressive descents, or cross-country, this shock will deliver the control and comfort you need.