The ContiTech Double Convoluted Air Spring 64394/1R13-118/1R13-149/8434 ensures you are Ready for the Road Ahead™, boasting the capability to lower or raise the truck's body height to match a ramp's elevation or to set up a suitable platform. Double convoluted air springs are the simplest solution from a technical point of view for air-suspended secondary springs. As an elastic link between the bogie and railcar body, rolling bellows distance the railcar body to the platform and absorb track irregularities by minimizing the transmission of vibrations. These air springs also achieve persistent and low natural frequency between tare and full load. This ensures effective cargo protection, even on poor road surfaces, excellent comfort and health protection for the truck driver, and safe driving conditions. FleetPride knows you need quality suspension and steering parts to reduce wear and tear and ultimately, downtime. Whether you need cab, truck or trailer air springs, we have the heavy duty air bags you need for a quiet, stable ride. FleetPride is your First Click in Heavy Duty®.