Abstract: In an embodiment a sensor unit includes a hub axle connectable to an electric motor of a drive device of an electric bicycle, a housing element rotatable about an axis of rotation and configured to form a part of a motor housing for the electric motor, wherein the housing element is coupled to the hub axle and comprises an opening through which the hub axle extends and a first printed circuit board and a second printed circuit board configured to determine a torque of a rider of the electric bicycle and are coupled to one another in terms of signal technology, wherein the printed circuit boards are coupled to the hub axle on opposite sides of the housing element and at least partially surround the hub axle with respect to the axis of rotation.

Abstract: In an embodiment a driving device for an electric bicycle includes a motor unit configured to drive the electric bicycle, a drive and a gear stage, wherein the drive is configured to drive the gear stage, wherein the gear stage is configured to drive the electric bicycle, the gear stage being coupled to the drive, on the one hand, and configured to output a torque for driving the electric bicycle, on the other hand, and wherein the gear stage is designed as a strain wave gear and the drive and the strain wave gear are arrangeable coaxially with respect to an axis of rotation of a pedal crank of the electric bicycle.

Abstract: In an embodiment a driving device for an electric bicycle includes a motor unit having an electric motor configured to drive the electric bicycle, a first gear stage and a second gear stage, wherein the first gear stage is coupled to the motor unit on the one hand and to the second gear stage on the other hand, wherein the second gear stage is configured to output a torque configured to drive the electric bicycle, and wherein the second gear stage is a strain wave gear and is arrangeable coaxially with respect to an axis of rotation of a pedal crank of the electric bicycle.

Abstract: A housing, particularly a battery housing, includes at least one first housing part, at least one second housing part, and at least one connecting member connecting the first housing part to the second housing part. The first housing part and the second housing part are configured such that, in an interconnected state, they separate a housing interior space from an environment situated on the other side of the first housing part and the second housing part. The housing is characterized in that the at least one connecting member is configured as a profile rail engaged with the first housing part and with the second housing part.

Abstract: A housing, particularly a battery housing, includes at least one first housing part, at least one second housing part, and at least one connecting member connecting the first housing part to the second housing part. The first housing part and the second housing part are configured such that, in an interconnected state, they separate a housing interior space from an environment situated on the other side of the first housing part and the second housing part. The housing is characterized in that the at least one connecting member is configured as a profile rail engaged with the first housing part and with the second housing part.

Abstract: An auxiliary motor, for a bicycle, includes 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. 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.

Abstract: 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.