20140196970 | BICYCLE FRAME, BATTERY PACK, AND BICYCLE - This invention discloses an auxiliary motor for a bicycle and a related bicycle wherein the auxiliary motor has an energy storage device for storing energy, a drive device for converting the energy stored in the energy storage device into kinetic energy and a transmission device for transmitting the kinetic energy onto a pedal crank spindle, wherein the auxiliary motor is designed to be attached to a down tube of a bicycle at least parallel to the down tube and to power a pedal crank of the bicycle. | 07-17-2014 |