Abstract: A retractable top for a motorcycle including a windshield and a storage compartment, the retractable top is provided with at least one hinge secured to the storage compartment, at least one folding member for pivotably securing a front section of the retractable top to an adjacent section of the retractable top, and at least one buckle for securing the front section of the retractable top to the windshield. Each buckle includes a first hook disposed on an inner surface of the windshield, a pivotal loop configured to place on the first hook, a second hook disposed on an inner surface of the front section of the retractable top, and a third hook pivotably secured to the pivotal loop and configured to secure to the second hook. The retractable top and the windshield are configured to releasably fasten together.

Abstract: A steering mechanism of a reverse tricycle in combination includes a structural member including a central opening, two upper openings, and two lower openings; two upper link arm assemblies pivotably secured to the upper openings respectively; two lower link arm assemblies pivotably secured to the lower openings respectively; a shock absorber disposed through the central opening and having both ends pivotably secured to the lower link arm assemblies respectively; and two pivot assemblies wherein one pivot assembly pivotably secured to a hub of one front wheel of the tricycle and an other pivot assembly pivotably secured to a hub of an other front wheel of the tricycle. The steering mechanism causes leaning of the reverse tricycle in the direction of turning.

Abstract: A suspension for use on two front/rear wheels of a tricycle includes a linking assembly comprising two H-shaped lower supports, two H-shaped upper supports, two coupling members each secured to a hub of the front/rear wheel, and a plurality of internally threaded linkages for pivotably securing the upper supports together, pivotably securing the lower supports together, and pivotably fastening each coupling member between the upper support and the lower support at the same side together; and an elongated shock absorber having both ends secured the upper supports.