A rider's seat for a two-wheeled vehicle, in particular a scooter, includes a seating body and a bracket connecting the seating body to a body of the two-wheeled vehicle. The bracket is displaceable relative to the body of the two-wheeled vehicle along a longitudinal direction of the two-wheeled vehicle. The seating body is displaceable relative to the bracket at least along a vertical direction of the two-wheeled vehicle. The seating body is partially received within a guide of the bracket such that the guide of the bracket directs displacement of the seating body at least along the vertical direction of the two-wheeled vehicle. The guide of the bracket includes a curvilinear profile.

A rider's seat for a two-wheeled vehicle, in particular a scooter, includes a seating body and a bracket connecting the seating body to a body of the two-wheeled vehicle. The bracket is displaceable relative to the body of the two-wheeled vehicle along a longitudinal direction of the two-wheeled vehicle. The seating body is displaceable relative to the bracket at least along a vertical direction of the two-wheeled vehicle. The seating body is partially received within a guide of the bracket such that the guide of the bracket directs displacement of the seating body at least along the vertical direction of the two-wheeled vehicle. The guide of the bracket includes a curvilinear profile.

A step-through type vehicle includes: a frame assembly; at least one front wheel and at least one rear wheel connected to the frame assembly and rotated by a power unit; and a plurality of portions comprising one or more flexible portions, and one or more fixed portions. The fixed portions include a front structure, a rear structure, and a top structure disposed between the front structure and the rear structure. The flexible portions include at least one retractable member. The top structure and the retractable member include a plurality of solar panels. The retractable member is detachably attached with the top structure, and is retracted upwardly towards the top structure, and stretched downwardly from the top structure towards the front wheel and the rear wheel. The retractable member is foldably stowed inside at least one box like compartment, which is at least one part of the rear structure.

A power-assist drive system for a vehicle (e.g., a bicycle) is provided. The system includes a drive unit assembly attached to a frame of a vehicle and a motor having an output shaft, and a drive gear rotatably associated with the output shaft. The system further includes a driven unit assembly including a driven gear configured to be attached to a wheel hub of the vehicle, and a brake disc coaxially attached to the driven gear. The drive gear may be configured to operably engage the driven gear to transmit power from the motor to the wheel hub. A brake caliper may be integrated with the drive unit assembly. The system may further include a battery and a speed controller configured to receive an input signal to selectively direct electrical power from the battery to the motor to drive the wheel via the drive gear and the driven gear.

A power-assist drive system for a vehicle (e.g., a bicycle) is provided. The system includes a drive unit assembly attached to a frame of a vehicle and a motor having an output shaft, and a drive gear rotatably associated with the output shaft. The system further includes a driven unit assembly including a driven gear configured to be attached to a wheel hub of the vehicle, and a brake disc coaxially attached to the driven gear. The drive gear may be configured to operably engage the driven gear to transmit power from the motor to the wheel hub. A brake caliper may be integrated with the drive unit assembly. The system may further include a battery and a speed controller configured to receive an input signal to selectively direct electrical power from the battery to the motor to drive the wheel via the drive gear and the driven gear.

A cart includes a hub, a frame, and at least one handlebar. The frame includes a first segment and a second segment, and the first segment, the second segment, and the handlebar are each supported by the hub. The hub defines a rotational axis and at least two of the first segment, the second segment, and the handlebar are rotatable about the rotational axis relative to each other and the hub. At least one wheel is on the first segment and at least one wheel is on the second segment.

A cart includes a hub, a frame, and at least one handlebar. The frame includes a first segment and a second segment, and the first segment, the second segment, and the handlebar are each supported by the hub. The hub defines a rotational axis and at least two of the first segment, the second segment, and the handlebar are rotatable about the rotational axis relative to each other and the hub. At least one wheel is on the first segment and at least one wheel is on the second segment.

A hybrid leisure vehicle equipped with an electric motor and an engine includes: an accelerator sensor that detects an operation amount of an accelerator operation member operated by a user; a controller that includes a processor and a memory and that controls the electric motor and the engine based on a detection signal of the accelerator sensor; and a selection input device connected to the controller and operated by the user. The memory stores a plurality of mode programs each of which specifies how to change states of the electric motor and the engine depending on vehicle-related parameters. The processor selects a mode program from the plurality of mode programs in response to an input provided by the user to the selection input device, and controls the electric motor and the engine according to the selected mode program.

A hybrid leisure vehicle equipped with an electric motor and an engine includes: an accelerator sensor that detects an operation amount of an accelerator operation member operated by a user; a controller that includes a processor and a memory and that controls the electric motor and the engine based on a detection signal of the accelerator sensor; and a selection input device connected to the controller and operated by the user. The memory stores a plurality of mode programs each of which specifies how to change states of the electric motor and the engine depending on vehicle-related parameters. The processor selects a mode program from the plurality of mode programs in response to an input provided by the user to the selection input device, and controls the electric motor and the engine according to the selected mode program.

In an engine, a cylinder block and a cylinder head are connected with a crankcase in a forwardly inclined posture. A dual clutch connects or disconnects a transmission path of power of the engine to a transmission. An actuator chamber houses an actuator that controls a hydraulic pressure of the dual clutch. The actuator chamber is disposed on an upper surface of the cylinder block at a position posterior to the cylinder head and anterior to the crankcase in a vehicle longitudinal direction.