| 摘要 |
A foldable bicycle is provided. One feature of the foldable bicycle (10) is that the central portion of the frame that defines the bicycle's geometry is substantially rigid. That is, the down tube (165), seat tube (25), top tube (15) and bearing tube (30) are substantially fixed relative to each other. Another feature of the foldable bicycle (10) is that the front wheel (175) can be folded into a position between the down tube (170), which is comprised of two tubes. Yet another feature is a tandem bicycle configuration that does not extend the length of the frame or the wheelbase |
