| 摘要 |
The bicycle comprises a chassis (2) in the shape of a rectilinear beam connecting the rear wheel (4) hub (5) to the upper part (7) of the front fork (3). The fork carries the front wheel (6) of larger diameter than the rear wheel. The handlebars (8), fixed to the fork, have two curved portions (13,14) which are adapted to fit the user's shoulders when the bicycle is carried on his back. Toe clips (11) are fixed on the chassis beam near to the rear wheel so that the user can stand on them whilst holding the handlebars with his hands. Two front brake blocks (17) are activated by levers (18) on the handlebars. A rear drum brake (19) is activated by a foot lever (20).
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