Disclosed is an electrical self-balancing scooter, comprising two wheels (2) mounted on a wheel shaft (1), an accommodation body (3) located between the two wheels (2), and a support frame (4) mounted on the wheel shaft (1), wherein, the accommodation body (3) comprises a first accommodation part (31) and a second accommodation part (32) on top of the first accommodation part (31), the first accommodation part (31) comprises a side cover board (312), the second accommodation part (32) comprises two partial cover boards (323), the two partial cover boards (323) and the side cover board (312) surround and form a cylindrical or partially cylindrical accommodation space having a cylinder axis passing through the wheel shaft (1), and an opening (324) is formed at a joint of the two partial cover boards (323) for the support frame (4) to pass through. This electrical self-balancing scooter has the advantages of being easy to assemble and disassemble as well as being comfortable to ride.

Electric scooter having: a footboard; at least one driving wheel that is coupled to the footboard and is arranged in a front or rear position; at least one driven wheel which is coupled to the footboard and is arranged in a rear or front position; a handlebar operatively coupled to the footboard to turn a front wheel; an electric motor that is suitable for turning the driving wheel; and a gearbox with two or more gear ratios that is interposed between the electric motor and the driving wheel to receive the motion from the electric motor and transmit motion to the driving wheel.

Electric scooter having: a footboard; at least one driving wheel that is coupled to the footboard and is arranged in a front or rear position; at least one driven wheel which is coupled to the footboard and is arranged in a rear or front position; a handlebar operatively coupled to the footboard to turn a front wheel; an electric motor that is suitable for turning the driving wheel; and a gearbox with two or more gear ratios that is interposed between the electric motor and the driving wheel to receive the motion from the electric motor and transmit motion to the driving wheel.

Two-wheeled motor-driven vehicles are disclosed. In one embodiment, a two-wheeled motor-driven vehicle includes a chassis, a central unit including a drive unit and a seat carrier, and a cockpit including a steering mechanism and an operating unit. Front and/or rear wheels are carried on respective wheel mounts that rotatably carry the wheels via a roller bearing. The wheel mounts have a first toroidal wheel bearing rim and a second toroidal wheel bearing rim mountable to a wheel rim.

Two-wheeled motor-driven vehicles are disclosed. In one embodiment, a two-wheeled motor-driven vehicle includes a chassis, a central unit including a drive unit and a seat carrier, and a cockpit including a steering mechanism and an operating unit. Front and/or rear wheels are carried on respective wheel mounts that rotatably carry the wheels via a roller bearing. The wheel mounts have a first toroidal wheel bearing rim and a second toroidal wheel bearing rim mountable to a wheel rim.

An upper half body flange is disposed over a whole circumference of a lower end portion of an upper half body along a plane and a lower half body flange is disposed over a whole circumference of an upper end portion of a lower half body along the plane. The upper half body and the lower half body are made of titanium material, and the upper half body flange and the lower half body flange have linear outer edges as straight line portions. The upper half body has a side surface, the lower half body has a side surface, and the side surface and the side surface include recesses and convex portions. The recesses and the convex portions are disposed within a range of lengths of the straight line portions when viewed from above in the direction perpendicular to the plane.

An upper half body flange is disposed over a whole circumference of a lower end portion of an upper half body along a plane and a lower half body flange is disposed over a whole circumference of an upper end portion of a lower half body along the plane. The upper half body and the lower half body are made of titanium material, and the upper half body flange and the lower half body flange have linear outer edges as straight line portions. The upper half body has a side surface, the lower half body has a side surface, and the side surface and the side surface include recesses and convex portions. The recesses and the convex portions are disposed within a range of lengths of the straight line portions when viewed from above in the direction perpendicular to the plane.

A straddled vehicle, including a frame structure, a rear arm, a driving wheel rotatably supported by the rear arm, a power source unit, and a drive unit including a gear box, a drive motor and a control unit. The drive motor is arranged with an off-set toward a first direction from a center of the straddled vehicle, without overlapping the power source unit in a side view. The control unit is further in a second direction than the drive motor, and overlaps the drive motor, but does not overlap the power source unit, in the side view. The gear box is further in the second direction than the drive motor, and overlaps the drive motor in the side view. The gear box is also further in the first direction than the control unit, and overlaps with the control unit, but does not overlap the power source unit, in the side view.

The teachings provided herein are generally directed to compact vehicle drive mechanisms that can be used in the design of a foldable, carry-on vehicle. The compact drive mechanisms presented herein, for example, have contributed to the advent of the compact, carry-on bicycles set-forth in the teachings which include drive-and-steering units and drive-and-chassis units.

This rear wheel suspension device of a motorcycle is disposed so as to be displaced to one lateral side relative to a center portion in the vehicle widthwise direction of the motorcycle. A main frame which forms the front half of a motorcycle frame structure has a single backbone frame extending from a head pipe rearward and obliquely downward in the center portion in the vehicle widthwise direction. A vehicle-body-side support member which extends in the vehicle widthwise direction is supported by a rear portion of the backbone frame. A one end portion of the rear wheel suspension device is rotatably supported by a right end portion of the vehicle-body-side support member.