Review: RoadActive Suspension (RAS) vs. Rear Airbags
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RoadActive Suspension (RAS)
Overview
The RoadActive Suspension (RAS) is a unique system designed to upgrade rear leaf spring suspension from a passive to an active system. This enhancement strengthens the rear leaf springs by absorbing and dissipating load force energy, leading to improved load and road handling without sacrificing ride quality.
Pros:
Improved Load Handling: RAS strengthens the rear leaf springs, providing better support for heavy loads and reducing sag.
Enhanced Ride Quality: The active suspension system maintains a smooth ride, even under heavy loads.
No Maintenance Required: Once installed, RAS does not require readjustments or ongoing maintenance.
Increased Stability: The system adds strength and stability to the vehicle, ensuring safer handling and improved control.
Easy Installation: RAS can be installed without significant modifications to the vehicle.
Cons:
Initial Cost: While it offers long-term benefits, the initial investment can be higher compared to simpler solutions.
Specific to Leaf Springs: RAS is designed for vehicles with rear leaf spring suspension, limiting its applicability to other suspension types.
Rear Airbags
Overview
Rear airbags are installed to support the rear suspension, providing additional lift and stability when carrying heavy loads. They can be adjusted by filling them with air to the desired pressure, often with the aid of an onboard air compressor for convenience.
Pros:
Adjustable Support: Rear airbags can be inflated or deflated to provide the desired level of support, making them versatile for varying loads.
Improved Ride Quality: Properly adjusted airbags can enhance ride comfort by reducing sag and maintaining a level stance.
Onboard Air Options: An onboard air system allows for easy adjustments and can also be used for other purposes, such as inflating tires.
Cons:
Encourages Overloading: By masking the visual cues of overloading (i.e., sagging rear end), airbags can tempt users to exceed safe load limits.
Increased Weight and Complexity: Installing airbags and an onboard air system adds weight and complexity to the vehicle.
Maintenance and Adjustments: Airbags require regular checks and adjustments to maintain the correct pressure.
No Increase in Towing Capacity: While airbags improve stability under load, they do not increase the vehicle's towing capacity.
Key Considerations
1. Vehicle Type and Usage
RAS: Ideal for vehicles with rear leaf spring suspension, particularly those regularly carrying heavy loads or towing.
Airbags: Suitable for various suspension types and for users who need adjustable support for fluctuating load weights.
2. Installation and Maintenance
RAS: Once installed, it requires no further adjustments or maintenance, making it a hassle-free solution.
Airbags: Installation can be more complex, especially with an onboard air system, and requires ongoing maintenance.
3. Safety and Stability
RAS: Enhances overall stability and handling without compromising ride quality, ensuring a safer driving experience.
Airbags: Improves ride quality and reduces sag but can lead to overloading if not used responsibly.
4. Cost and Long-term Value
RAS: Higher upfront cost but offers long-term stability and no additional maintenance expenses.
Airbags: Lower initial cost but may incur additional expenses for maintenance and onboard air systems.
Conclusion
Both RoadActive Suspension (RAS) and rear airbags offer significant benefits for enhancing the performance and stability of your vehicle when carrying heavy loads. RAS provides a maintenance-free, stable, and strong upgrade for rear leaf spring suspensions, ideal for those looking for a long-term solution. Rear airbags offer adjustable support and improved ride quality but require regular maintenance and careful use to avoid overloading. Your choice will depend on your vehicle type, typical usage, and preference for adjustability versus long-term stability.