A bicycle component includes a drive unit and a battery. The drive unit includes a housing mounted on a bicycle frame, a crankshaft provided to a first portion of the housing, and a propulsion assist motor provided to a second portion of the housing. The battery is electrical connected to the propulsion assist motor to supply electrical power to the propulsion assist motor. The propulsion assist motor includes a rotational axis extending in a direction intersecting a direction in which the crankshaft extends. At least part of the second portion and at least part of the battery are accommodated in the frame in a state in which the second portion and the battery are arranged next to each other in a direction parallel to the rotational axis of the propulsion assist motor and the battery is coupled to the second portion in an attachable and detachable manner.

A scooter includes a frame which has a footboard and supports a rear wheel, a steering column provided with a front wheel pivotably mounted on the frame, and a motor provided with a drive shaft coupled to the rear wheel via a transmission system. The transmission system includes a rear transverse shaft having a first end portion and a second end portion rotatably coupled to the rear wheel; —a gear system having a sprocket coupled rotatably to the first end portion and in meshing engagement with a toothed gear rotatably coupled to the drive shaft; and—a rear structure attached to the frame, supporting the gear system and the rear transverse shaft, and extending laterally along one side only—right or left—of the rear wheel, such that the second end portion extends from the rear structure to support the rear wheel in a cantilevered fashion.

A scooter includes a frame which has a footboard and supports a rear wheel, a steering column provided with a front wheel pivotably mounted on the frame, and a motor provided with a drive shaft coupled to the rear wheel via a transmission system. The transmission system includes a rear transverse shaft having a first end portion and a second end portion rotatably coupled to the rear wheel; —a gear system having a sprocket coupled rotatably to the first end portion and in meshing engagement with a toothed gear rotatably coupled to the drive shaft; and—a rear structure attached to the frame, supporting the gear system and the rear transverse shaft, and extending laterally along one side only—right or left—of the rear wheel, such that the second end portion extends from the rear structure to support the rear wheel in a cantilevered fashion.

In an electric drive device for a bicycle, there is an electric motor with an output shaft and an angular gear by which the output shaft is connectable to a wheel of the bicycle in a drive-effective manner, and a fastening device is provided, carrying the electric motor and configured to fasten the electric motor to a rotation axle of the wheel.

In a saddle riding vehicle including: a sprocket driven by a power transmission member; a sprocket support member that supports the sprocket and that is connected with a wheel; a damper member that is housed in a recessed portion in a hub of the wheel and disposed between the hub and the sprocket support member, the damper member being deformed through a relative rotation between the hub and the sprocket support member; and a resistance mechanism that dampens the relative rotation between the hub and the sprocket support member, the sprocket support member includes an extension portion that covers an outer periphery of the hub from an outside in a radial direction, and the resistance mechanism is disposed between an inner periphery of the extension portion and the outer periphery of the hub.

In a saddle riding vehicle including: a sprocket driven by a power transmission member; a sprocket support member that supports the sprocket and that is connected with a wheel; a damper member that is housed in a recessed portion in a hub of the wheel and disposed between the hub and the sprocket support member, the damper member being deformed through a relative rotation between the hub and the sprocket support member; and a resistance mechanism that dampens the relative rotation between the hub and the sprocket support member, the sprocket support member includes an extension portion that covers an outer periphery of the hub from an outside in a radial direction, and the resistance mechanism is disposed between an inner periphery of the extension portion and the outer periphery of the hub.

A stator ring-internal gear assembly for a transmission device comprising a planetary gear of a wheel hub drive for a vehicle, the assembly may include a stator ring of an electrically operable electric motor device of the wheel hub drive for providing a motor torque and an internal gear of the transmission device for translating the provided motor torque into a net torque. The stator ring and the internal gear may be directly fixed to one another by positive connection in a non-rotatable and tension-resistant manner. The stator ring and the internal gear may form a mono-lithic unit.

A stator ring-internal gear assembly for a transmission device comprising a planetary gear of a wheel hub drive for a vehicle, the assembly may include a stator ring of an electrically operable electric motor device of the wheel hub drive for providing a motor torque and an internal gear of the transmission device for translating the provided motor torque into a net torque. The stator ring and the internal gear may be directly fixed to one another by positive connection in a non-rotatable and tension-resistant manner. The stator ring and the internal gear may form a mono-lithic unit.

A planet carrier ring-freewheel assembly for a transmission device including a planetary gear for a wheel hub drive for a vehicle is disclosed. The assembly includes a freewheel inner ring and/or a freewheel outer ring of a freewheel device for transmitting, dependent on a direction of rotation, a net torque provided by a drive unit of the wheel hub drive to a hub housing of the wheel hub drive, and a planet carrier ring of the planetary gear structured for supporting planet gear wheels. The planet carrier ring and the freewheel inner ring and/or the free wheel outer ring are directly fixed to one another by a positive connection in a non-rotatable and tension-resistant manner.