| 摘要 |
A motor assembly adapted to be mounted to a bicycle for driving a wheel of the bicycle comprising: an electric motor 2 and a speed reduction device 4. The speed reduction device 4 is a high reduction cycloidal reduction device and its method of operation can be seen in figures 8a-e. Balancing means such as a counterweight 425 or an additional cycloidal disc (42' figs 9 and 10) 180{ out of phase with respect to the other disc 42 may also be provided. |
