Comparing Bomber CR Trunnion Rear Shocks to the Competition

The Marzocchi Bomber CR Trunnion [paid link] rear shock is designed for aggressive riders who demand both performance and durability. Known for its smooth action and reliable damping, it stands out in the world of mountain biking. However, it’s crucial to understand how the Bomber CR Trunnion [paid link] compares to its competition in terms of installation, performance, customization, and overall compatibility. This guide provides an in-depth comparison to help riders make an informed decision when choosing a rear shock for their bike.

Key Features of the Bomber CR Trunnion Rear Shock

The Bomber CR Trunnion rear shock offers a blend of advanced technology and user-friendly features. It includes a robust aluminum body, high-quality seals, and a trunnion mounting system that improves stiffness and reduces flex compared to traditional eyelet mount systems. The shock also features a coil spring, making it an ideal choice for riders who prefer the progressive feel and consistent performance of coil suspension.

Performance and Damping

One of the standout features of the Bomber CR Trunnion is its compression and rebound damping adjustments, allowing riders to fine-tune their suspension for varying terrain conditions. The shock provides excellent support and control, offering a comfortable ride on rough trails without compromising on responsiveness. Compared to air shocks, the Bomber CR Trunnion’s coil system provides more consistent performance under extreme conditions, making it a favorite for enduro and downhill riders.

Durability and Reliability

Marzocchi has a long history of producing durable suspension components, and the Bomber CR Trunnion continues that tradition. It is designed to handle the roughest conditions, with a robust construction that resists the wear and tear often associated with aggressive riding. Its coil spring system ensures long-term performance, with minimal maintenance requirements compared to air shocks that may lose pressure over time.

Bomber CR Trunnion vs. Competition

When comparing the Bomber CR Trunnion rear shock to its competitors, there are several factors to consider, including performance, price, and compatibility with other drivetrain components.

vs. RockShox Super Deluxe Coil

The RockShox Super Deluxe Coil is one of the Bomber CR Trunnion’s closest competitors. Both shocks use a coil spring system, offering similar damping adjustments for compression and rebound. However, the Bomber CR Trunnion is typically more affordable and delivers a slightly more supple feel, making it a great option for riders on a budget who still want high-end performance.

Price: The Bomber CR Trunnion is generally priced lower than the RockShox Super Deluxe Coil, making it a more budget-friendly option without sacrificing too much in terms of performance.
Damping Adjustments: While both shocks offer excellent adjustability, the Bomber CR Trunnion tends to feel more plush and smooth over rough terrain, especially for riders who prefer a coil spring’s natural feel.

vs. Fox DHX2

The Fox DHX2 is another high-end coil shock often compared with the Bomber CR Trunnion. The DHX2 offers advanced features like high- and low-speed compression damping and a wider range of spring options. However, the Bomber CR Trunnion is known for its simplicity and ease of use. For riders who want a no-fuss, durable rear shock that delivers great performance, the Bomber CR Trunnion is an attractive alternative.

Weight: The DHX2 is slightly lighter than the Bomber CR Trunnion, making it a better option for riders focused on weight savings.
Customization: The DHX2 offers a greater range of adjustment options compared to the Bomber CR Trunnion, which might appeal to riders looking for precision tuning.

vs. Ohlins TTX22M

Ohlins is another well-regarded brand in the world of mountain bike suspension, with the TTX22M being one of its top models. While the Bomber CR Trunnion is praised for its reliability and smooth performance, the Ohlins TTX22M excels in fine-tuning and delivering a more customizable ride. The Ohlins shock uses a twin-tube design that provides excellent heat dissipation, reducing fade over long descents, making it ideal for downhill riders.

Adjustability: The Ohlins TTX22M offers more adjustability, allowing for precise control over compression, rebound, and even high- and low-speed damping. In comparison, the Bomber CR Trunnion is simpler but still provides sufficient adjustability for most riders.
Performance: While the Ohlins offers superior performance in extreme conditions, the Bomber CR Trunnion is a more affordable alternative that delivers solid, consistent performance for a wide range of riders.

Installation and Maintenance

Installation Process

Installing the Bomber CR Trunnion rear shock is a straightforward process, especially for riders who are familiar with suspension setup. The trunnion mount system offers better stiffness than traditional eyelet mounts, reducing flex and improving overall ride quality.

Step 1: Remove the old shock by loosening the mounting bolts.
Step 2: Install the Bomber CR Trunnion by aligning the trunnion mount with the frame’s mounting points.
Step 3: Secure the shock with the provided hardware, making sure the bolts are tightened to the recommended torque specifications.
Step 4: Set the correct preload on the coil spring according to the rider’s weight and riding style.

Maintenance Tips

The Bomber CR Trunnion rear shock is designed for low-maintenance use. However, like any suspension component, it will require some basic care to ensure long-term performance.

Regular Cleaning: Clean the shock after every ride to remove dirt and debris.
Spring Tuning: Adjust the preload on the coil spring as needed to match your riding conditions.
Lubrication: Periodically lubricate the shock’s moving parts to ensure smooth operation.

Customization and Optimization

One of the key advantages of the Bomber CR Trunnion rear shock is its simplicity in customization. The coil spring offers a more predictable ride, making it easier for riders to adjust for their specific needs.

Spring Rate: Choose a spring rate that suits your weight and riding style. A stiffer spring is ideal for aggressive riders, while a softer spring is better suited for lighter riders.
Compression and Rebound Damping: Use the compression and rebound damping adjusters to fine-tune the shock for different trail conditions. For smoother trails, dial in more rebound damping to prevent the shock from bouncing. For rougher terrain, increase compression damping for better control.

Compatibility with Other Drivetrain Components

The Bomber CR Trunnion rear shock is designed to work with a variety of mountain bike setups. It is compatible with most modern mountain bike frames that support trunnion-mount shocks. Riders should ensure that their frame’s geometry and shock length align with the specifications of the Bomber CR Trunnion.

Frame Compatibility: The Bomber CR Trunnion is typically compatible with frames that have a 205mm x 60mm or 205mm x 65mm trunnion mount. Always check your frame’s specifications before purchase.
Drivetrain Integration: The rear shock does not directly affect drivetrain components like the derailleur or cassette, but it is important to ensure the overall balance between the suspension and drivetrain for optimal performance.

Conclusion

The Marzocchi Bomber CR Trunnion rear shock stands out as a durable, high-performance option for riders looking for a reliable coil shock at an affordable price. While it may not offer the same level of fine-tuning as some of its high-end competitors, it provides excellent value for aggressive riders who want consistent performance. Whether you are comparing it to the RockShox Super Deluxe Coil, the Fox DHX2, or the Ohlins TTX22M, the Bomber CR Trunnion proves to be a solid choice for those seeking a balanced combination of performance, durability, and ease of use.