Today, we're still producing quality air springs, uniquely designed for durability, performance and value. Rough ride, vehicle deterioration and cargo damage all result from shock and vibration transmitted from road to vehicle. The suspension system must absorb this shock and vibration. Steel springs, even new lightweight composite springs, have one major drawback. They must be designed stiff enough to carry the maximum load of the vehicle. When a truck is deadheading or is only partially loaded, steel suspension systems are too stiff to allow the deflection necessary to prevent vibration and shock from being transmitted from the wheels to the frame. That's not the case with Almas Fanar Khavar air springs. The key is compensating spring rate. Almas Fanar Khavar air springs allow for a change in the spring rate, or stiffness, to accommodate load changes. A lightly loaded vehicle operates with low air pressure in the springs, while a fully loaded vehicle operates with a high spring pressure. Changing from low to high pressure is done automatically through special sensing valves. Little wonder that Almas Fanar Khavar air springs are found on vehicles as diverse as buses, trailers and semi-trailers. Through strict design parameters, Almas Fanar Khavar air springs operate dependably in all climates.