Big trucks use air suspension for a reason. Airide™ suspensions ride better than steel spring suspensions, and reduce the wear and tear on your equipment. They protect both the driver and cargo, regardless of the load. R4Tech is a patented, hybrid air-over-leaf suspension that provides the ride quality of a full-air suspension with the ease of installation of a standard leaf spring and Ride-Rite™ kit.
The foundation of the R4Tech suspension is designed and manufactured by SANLUIS Rassini, the preeminent supplier of springs to the North American light truck industry. When combined with Firestone Airide™ air springs and Ride-Rite™ air accessories, the result is a suspension kit that is unmatched in terms of durability, reliability, and ride quality.