In an embodiment, there is provided a motorcycle comprising at least one front wheel, at least one rear wheel and a vehicle body, the vehicle body comprising a substantially open elongate duct extending longitudinally through a central portion of the vehicle body between an open inlet aperture arranged at a front portion of the vehicle body and an open outlet aperture arranged at a rear portion of the vehicle body.

In an embodiment, there is provided a motorcycle comprising at least one front wheel, at least one rear wheel and a vehicle body, the vehicle body comprising a substantially open elongate duct extending longitudinally through a central portion of the vehicle body between an open inlet aperture arranged at a front portion of the vehicle body and an open outlet aperture arranged at a rear portion of the vehicle body.

A cooling system of an internal combustion engine of a motorcycle, which has a suction side guard (4), enables a high ratio between the open surface of the guard and its overall surface, ensuring an improved penetration of the air through the radiator and thus avoiding oversizing of the suction fan, wherein: said guard (4), having a lower edge (6), an upper edge (7), a front edge (8) and a rear edge (9) with respect to a running direction (F) of the vehicle, has a grate mesh structure extending on a plane whereby a deviation space (12) of motion of the air sucked by the fan is defined behind the guard (4); said grate mesh structure being surrounded by a rib (13) having, at the front edge (8), a lower height than that at the rear edge (9).

A straddle-type electric vehicle, comprising a pair of left and right main frames, a seat rail extending rearward from a rear portion of each of the main frames, a pivot frame extending downward from a rear portion of each of the main frames, a swing arm supported by the pivot frame and by which a rear wheel is swingably supported, a battery arranged in a space between the main frames, a power unit arranged in the space and generates motive power based on electric power of the battery, and a wind guiding duct for guiding traveling wind to the space, the wind guiding duct provided relative to each of the main frames, the wind guiding duct being positioned more outward in a vehicle width direction than the main frames.

A straddle-type electric vehicle, comprising a pair of left and right main frames, a seat rail extending rearward from a rear portion of each of the main frames, a pivot frame extending downward from a rear portion of each of the main frames, a swing arm supported by the pivot frame and by which a rear wheel is swingably supported, a battery arranged in a space between the main frames, a power unit arranged in the space and generates motive power based on electric power of the battery, and a wind guiding duct for guiding traveling wind to the space, the wind guiding duct provided relative to each of the main frames, the wind guiding duct being positioned more outward in a vehicle width direction than the main frames.

A straddle-type vehicle includes a driver seat on which a driver rides, a cylinder head of an engine arranged in a region in front of and below the driver seat, an exhaust pipe that is connected to an exhaust port formed on a front surface of the cylinder head and exhausts exhaust of the engine, and a control unit that is arranged in an engine front space formed in front of the cylinder head, above the exhaust pipe, and below an upper end surface of the engine and controls the straddle-type vehicle.

A cover structure of a vehicle front portion of a straddle-type vehicle provided with a headlamp unit is provided. The cover structure includes a lamp cover attached to a periphery of the headlamp unit, and a side cover disposed on a rear side of the lamp cover and outward in a left-right direction of the lamp cover An outer side surface of the lamp cover is inclined outward in the left-right direction toward an outer side surface of the side cover.

A cover structure of a vehicle front portion of a straddle-type vehicle provided with a headlamp unit is provided. The cover structure includes a lamp cover attached to a periphery of the headlamp unit, and a side cover disposed on a rear side of the lamp cover and outward in a left-right direction of the lamp cover An outer side surface of the lamp cover is inclined outward in the left-right direction toward an outer side surface of the side cover.

A vehicle wind buffeting shield, a vehicle incorporating a wind buffeting shield, and a method of diverting upward air flow during operation of a vehicle using a wind buffeting shield are provided. The wind buffeting shield includes a flow restricting portion and at least one mounting member. The at least one mounting member couples the flow restricting portion proximate a bottom portion of a gas tank of a vehicle such that the flow restricting portion projects generally horizontal and outwards from the vehicle and restricts upward air flow during operation of the vehicle.

A vehicle wind buffeting shield, a vehicle incorporating a wind buffeting shield, and a method of diverting upward air flow during operation of a vehicle using a wind buffeting shield are provided. The wind buffeting shield includes a flow restricting portion and at least one mounting member. The at least one mounting member couples the flow restricting portion proximate a bottom portion of a gas tank of a vehicle such that the flow restricting portion projects generally horizontal and outwards from the vehicle and restricts upward air flow during operation of the vehicle.