| 摘要 |
The present invention relates to an improved motorcycle structure, comprising a front wheel, a back wheel, an engine, and a frame body; wherein the frame body having a left horizontal frame and a right horizontal frame, each of the horizontal frames having an aslant pipe coupled backward to the horizontal frames; a side wheel unit being set on each of the external side of the front wheel and the back wheel, further comprising a connecting device, a contractible supporting base, and a side wheel; the connecting device is for pivotally connecting the contractible supporting base and the horizontal frame, and using a sliding axle to pass through the components of the horizontal frame, and in the meantime passing through and coupling to a bushing corresponsive to contractible supporting base. The side wheel is pivotally coupled to the external side of the contractible supporting base; the contractible supporting base has at least one contractible rod such that the bottom and the top of the contractible rod are pivotally coupled onto the surface of the contractible supporting base and onto the frame body Such arrangement mainly makes use of the erection assistance and the contraction functions of the side wheel unit, so that motorcycle riders can drive or mak e turns on a rough road surface more safely andstably.
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