Abstract: An apparatus for the electric propulsion of a vehicle, in particular of a human-powered vehicle, preferably in the form of a bicycle or the like, comprising a support body, electric propulsion means for the forwarding actuation of the vehicle, preferably in the form of an electric motor, in particular of the brushless type, having a corresponding rotatable shaft for outputting the power generated by the same electric actuation means, or motor, and means for outputting the power generated by the electric propulsion apparatus, in particular comprising means for engaging, or meshing, with said operative connection means of the transmission means of the vehicle, i.e., with an elongated and closed-loop member, or articulated link chain. Said means for transferring the power generated by said electric actuation means, or motor, to said means for outputting the power generated by the electric propulsion apparatus comprise a first and a second speed reducer stage.

Abstract: Electric gear motor system for vehicles with two or three wheels, of the type externally installable on the bottom bracket of the vehicle. The system is applied to vehicles with two and three wheels, of the type including a standard bicycle frame with levers and pedal cranks for the transmission of the advancing motion of the vehicle. The gear motor unit is of “outrunner” type, i.e. with rotor outside the stator, and the gear box is of planetary type, nested inside the stator cavity; the system is characterized in that it is installed coaxially with the bottom bracket of the frame, by a hub, suitably shaped so as to be inserted in the cavities of the bottom brackets present on the standard bicycle frames, in a manner such that the revolution axes of the motor, the gear box and the pedal cranks coincide; the motor is situated outside the frame.

Abstract: Electric gear motor system for vehicles with two or three wheels, of the type externally installable on the bottom bracket of the vehicle. The system is applied to vehicles with two and three wheels, of the type including a standard bicycle frame with levers and pedal cranks for the transmission of the advancing motion of the vehicle. The gear motor unit is of “outrunner” type, i.e. with rotor outside the stator, and the gear box is of planetary type, nested inside the stator cavity; the system is characterized in that it is installed coaxially with the bottom bracket of the frame, by a hub, suitably shaped so as to be inserted in the cavities of the bottom brackets present on the standard bicycle frames, in a manner such that the revolution axes of the motor, the gear box and the pedal cranks coincide; the motor is situated outside the frame.