| 摘要 |
A foldable bicycle including (a) a stem tube including a first section slidably mounted in a second section pivotally linked to a third section, a handle bar mounted on the first section of the stem tube, the third section of the stem tube rotatably mounted in a head tube and (b) a top tube comprising a first section pivotally linked to a second section, the first section of the top tube fixed to the head tube, the second section of the top tube fixed to a downtube and a seat tube wherein a seat post is slidably mounted.
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