| 摘要 |
This new bicycle propulsion system is based on propulsion of a bicycle (12) by means of a system consisting of a pedal (4) intended to receive the toes such that the force obtained by pedaling with this pedal (4) is transmitted to the drive wheel (8) as a result of the elongated crank (3), causing circular movement, increasing the diameter of the circumference made by the pedal (4) and sprocket wheel (6), wherein this sprocket wheel (6) communicates with the pinion (10) by means of the chain (11).
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