How the High-Tech Suspension of the Colorado ZR2 Bison Operates


Multimatic, a company that has been making suspension components since 1984, has revolutionized the use of Dynamic Suspensions Spool Valve (DSSV) dampers in various racing series and production cars. The Chevrolet Colorado ZR2 Bison is one such vehicle that showcases the capabilities of these dampers, making it one of the most capable trucks in its class. With advanced technology like hydraulic bump stops, the ZR2 Bison offers a smooth and controlled ride both on and off-road.

1. The Technology Behind DSSV Dampers:
Multimatic’s DSSV dampers work by using spring-loaded spool valves to control the flow of pressurized hydraulic fluid, providing adjustable damping rates. The unique Jounce Control feature in the Bison’s dampers absorbs more impact and reduces rebound, resulting in a smoother ride over rough terrain compared to traditional shock absorbers. This technology enhances the truck’s ability to handle aggressive off-road environments while maintaining on-road comfort and handling.

2. Four Key Goals in Suspension Design:
Multimatic focused on four key goals when designing the DSSV dampers and hydraulic bump stops for the ZR2 Bison: minimizing body motion, reducing wheel travel, decreasing peak tire and frame loads, and enhancing energy dissipation. These goals contribute to the truck’s stability, control, and ability to handle high-speed off-road travel, making it stand out in its class.

3. Tire and Wheel Setup:
The Chevrolet Colorado ZR2 Bison features oversized 35-inch off-road tires on 17-inch beadlock wheels, increasing the truck’s ride height and overall width. The unique tire setup required adjustments to the front axle and offset to accommodate the larger rubber, enhancing the truck’s off-road prowess and rugged appearance.

4. Engine Performance:
While the ZR2 Bison is equipped with a turbocharged 2.7-liter four-cylinder engine producing 310 horsepower and 430 pound-feet of torque, some may find it lacking in power compared to other trucks in its class. However, the engine provides more than enough energy for off-road adventures and highway driving, offering a decent balance between performance and efficiency.

5. Overall Capability and Conclusion:
With Multimatic’s innovative suspension technology and a host of off-road features, the Colorado ZR2 Bison emerges as the most capable mid-size truck on the market. Its advanced damping system, oversized tires, and rugged design make it a standout choice for enthusiasts seeking a versatile and capable off-road vehicle. Despite some minor concerns about engine performance, the ZR2 Bison excels in conquering various terrains and delivering a smooth and controlled driving experience.

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