| I.P Abstract & Summary |
The invention relates to a bicycle comprising: a frame configured such that the saddle and handlebars are mounted on the frame; a front and rear wheel mounted at the front and rear of the frame, respectively; a pair of first-driven parts mounted on one and the other of the rear wheel, respectively, and mounted around a rotating axle; a pair of power-generating parts mounted on one and the other of the rear wheel, respectively, and mounted around a rotating axle capable of rotating in upward and downward directions; and power-transmitting parts mounted on one and the other of the rear wheel, respectively, linked to the first-driven parts and the power-generating parts, and configured so that, when the power-generating parts are rotated, they are rotated and transmit rotational force to the first-driven parts. |