Abstract: A three-wheeled vehicle steering and suspension system includes two support assemblies for two opposed front steerable wheels, the support assemblies each having a tubular housing welded to the vehicle frame, a cylindrical tube rotatably supported within the housing and a cylindrical rod slidably supported within the rotatable tube. Each rotatable tube is affixed at its outer end to the upright support assembly for one of the vehicle wheels and at its inner end to a shock-absorbing member for biasing the wheels into road contact and permitting independent movements thereof to adapt to road undulations. Each sliding rod is affixed at its outer end to the vertical turning shaft of the upright support assembly of one of the wheels and at its inner end to a reciprocal steering linkage for actuating synchronous turning movements of the wheels.

Abstract: A three-wheeled vehicle steering and suspension system including two support assemblies for two opposed front wheels pivotably mounted at opposite sides of the vehicle frame and operatively connected by a hydraulic cylinder arrangement actuated by the vehicle steering linkage for inducing opposed pivotal movement of the support assemblies during vehicle turning to cause leaning of the vehicle in the direction of turning. A biasing arrangement provides the operative connection between the hydraulic cylinder and the support assemblies for transmitting lean-actuating reciprocatory movement of the hydraulic cylinder to the support assemblies while yieldably permitting independent pivotal movements thereof.