Abstract: The invention relates to a battery holder device (1) for an electric bicycle (2), for example of the type with pedal assist by means of an electric motor. Such a battery holder device is designed to be housed inside a corresponding housing seat associated with the frame of the bicycle and to be connected to the electric motor of said bicycle. For this purpose, the battery holder device has a box-like body (20) having the structure of a removable rigid bag provided with a concealable-type handle (27); housing inside the corresponding seat is performed by means of snap-engagement of mechanical means and counter-means which comprise the said handle (27); an electrical connection with the motor (3) is established by means of coupling together of electrical connectors (17) provided in the box-like body (20) and in the housing seat.

Abstract: Wheel hub motor (1) for an electric bicycle, comprising: a fixed shaft (2) which can be associated with a frame of an electric bicycle; a hub shell (3) which is rotatable with respect to said fixed shaft (3) and can be incorporated in a wheel structure (100) of said electric bicycle; an electric motor (4) being housed inside said hub shell (3), said motor having an internal stator (40) rigidly connected to the fixed shaft (2) and an external rotor (41) rotatably movable with respect thereto, and a reduction unit (5) which kinematically connects the rotation of said external rotor (41) to that of said hub shell (3) and which comprises two reduction stages arranged alongside each other in the axial direction inside the hub shell (3): a first reduction stage (50) comprising at least one first pinion (51), rigidly connected to the external rotor (41) and coaxial with the fixed shaft (2) and meshing with at least one first gear (52) rigidly connected to an eccentric shaft (53) mounted on an intermediate member; an

Abstract: A brake for an electric bicycle is described, said brake comprising at least one mounting block (21) including a brake lever bracket (13) and a brake lever (5). Suitably, the brake comprises an internal support-piece (17) in turn comprising at least one first hole (17A) for housing a brake cable (11) connected to a suitable braking apparatus and a seating portion (17B) for seating a sensor cable (19) connecting a braking sensor (19A) to an electric motor of said electric bicycle.

Abstract: The invention relates to an electric propulsion unit (10) and torque transmission group (11) for operating the rear wheel (13) of an electric scooter (1) with body (2) of the step-through type and with upright sitting portion (6). The electric propulsion unit (10) comprises at least one synchronous electric motor (30) of the type comprising internal stator (32) and external rotor (29) with a cup-shaped form rotating on a fixed shaft (33) rigid with the stator (32); the motor is installed in a barycentric position substantially at the base of the upright sitting portion (6) with the fixed shaft (33) transverse to the longitudinal axis (X-X) of the scooter (2), and the transmission group (11) comprises at least one first and one second reduction stage (24, 26).

Abstract: The invention relates to an electric propulsion unit (10) and torque transmission group (11) for operating the rear wheel (13) of an electric scooter (1) with body (2) of the step-through type and with upright sitting portion (6). The electric propulsion unit (10) comprises at least one synchronous electric motor (30) of the type comprising internal stator (32) and external rotor (29) with a cup-shaped form rotating on a fixed shaft (33) rigid with the stator (32); the motor is installed in a barycentric position substantially at the base of the upright sitting portion (6) with the fixed shaft (33) transverse to the longitudinal axis (X-X) of the scooter (2), and the transmission group (11) comprises at least one first and one second reduction stage (24, 26).

Abstract: A brake for an electric bicycle is described, said brake comprising at least one mounting block (21) including a brake lever bracket (13) and a brake lever (5). Suitably, the brake comprises an internal support-piece (17) in turn comprising at least one first hole (17A) for housing a brake cable (11) connected to a suitable braking apparatus and a seating portion (17B) for seating a sensor cable (19) connecting a braking sensor (19A) to an electric motor of said electric bicycle.

Abstract: The invention relates to a battery holder device (1) for an electric bicycle (2), for example of the type with pedal assist by means of an electric motor. Such a battery holder device is designed to be housed inside a corresponding housing seat associated with the frame of the bicycle and to be connected to the electric motor of said bicycle. For this purpose, the battery holder device has a box-like body (20) having the structure of a removable rigid bag provided with a concealable-type handle (27); housing inside the corresponding seat is performed by means of snap-engagement of mechanical means and counter-means which comprise the said handle (27); an electrical connection with the motor (3) is established by means of coupling together of electrical connectors (17) provided in the box-like body (20) and in the housing seat.

Abstract: Wheel hub motor (1) for an electric bicycle, comprising: a fixed shaft (2) which can be associated with a frame of an electric bicycle; a hub shell (3) which is rotatable with respect to said fixed shaft (3) and can be incorporated in a wheel structure (100) of said electric bicycle; an electric motor (4) being housed inside said hub shell (3), said motor having an internal stator (40) rigidly connected to the fixed shaft (2) and an external rotor (41) rotatably movable with respect thereto, and a reduction unit (5) which kinematically connects the rotation of said external rotor (41) to that of said hub shell (3) and which comprises two reduction stages arranged alongside each other in the axial direction inside the hub shell (3): a first reduction stage (50) comprising at least one first pinion (51), rigidly connected to the external rotor (41) and coaxial with the fixed shaft (2) and meshing with at least one first gear (52) rigidly connected to an eccentric shaft (53) mounted on an intermediate member; an