| 摘要 |
A vehicle has a chassis with a front and rear ends and at least one front wheel mounted on the front end. A one-sided swing arm having an outer end portion, a support portion including a strut assembly, and an inner end portion is pivotally mounted on the rear end of the chassis. A wheel mounting assembly is disposed on the outer end portion of the swing arm, and a rear wheel which is interchangeable with the front wheel is mounted thereon. In one embodiment, the vehicle includes steering means for pivoting the front wheel about a first vertical axis to control the direction of movement of the vehicle, and a hub and pivot means mounting the hub on the outer end of the swing arm for pivotal movement of the rear wheel about a second vertical axis. The rear wheel is rotatably supported on the hub and naturally tracks the front wheel in a cooperating turning arc.
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