| 摘要 |
A two or three-wheeled vehicle, motorized or not, in which the handle-bar and the front fork are hinged to the steering hub so that they can be upset from their normal operative position to a contracted vehicle position reduced in overall dimensions, in which the front wheel center is put underneath the frame front part and the handle-bar is upset in an essentially horizontal way, so reducing the vehicle overall dimensions in length and in its front part height.
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