A vehicle includes an engine, at least three wheels including a front wheel and a rear wheel, a fuel tank above the engine, a seat rearward of the fuel tank, a canister positioned lower than the fuel tank, and a vent hose to supply air therethrough into the canister to desorb the adsorbed fuel evaporative emission from the canister. An upstream end of the drain hose is connected to the vent hose. A downstream end of the drain hose is positioned lower than the canister.

A fuel tank system is provided with at least two separate tank bodies, each with a respective tank body interior, and a connecting element connecting the tank bodies for fluid communication. The tank bodies are connected to each other by means of a connector and are fabricated from a plastic material. The fuel tank system is formed with receiving means (5) for arrangement on a frame of a vehicle, such as a motorcycle, having a driver's saddle. The fuel tank system includes a distributor element with a fuel filling opening; the distributor element is connected in a fluid-conducting manner to the tank bodies via at least one fluid-conducting connector.

A fuel tank system is provided with at least two separate tank bodies, each with a respective tank body interior, and a connecting element connecting the tank bodies for fluid communication. The tank bodies are connected to each other by means of a connector and are fabricated from a plastic material. The fuel tank system is formed with receiving means (5) for arrangement on a frame of a vehicle, such as a motorcycle, having a driver's saddle. The fuel tank system includes a distributor element with a fuel filling opening; the distributor element is connected in a fluid-conducting manner to the tank bodies via at least one fluid-conducting connector.

A wheeled vehicle is disclosed. The wheel of the vehicle may be a powered wheeled vehicle with an engine and a transmission system. The transmission system may be used to select a gear ratio to a powered wheel of the wheeled vehicle, such as a single wheel.

A fuel tank structure of a straddle vehicle includes a fuel tank which accumulates fuel supplied from a fuel filler port, a fuel tray which is provided above the fuel tank so as to surround the fuel filler port, and a gas-liquid separator which is connected to the fuel tank and separates the fuel into gas and liquid. The gas-liquid separator is spaced apart from the fuel tank and provided on the fuel tray.

A fuel tank structure of a straddle vehicle includes a fuel tank which accumulates fuel supplied from a fuel filler port, a fuel tray which is provided above the fuel tank so as to surround the fuel filler port, and a gas-liquid separator which is connected to the fuel tank and separates the fuel into gas and liquid. The gas-liquid separator is spaced apart from the fuel tank and provided on the fuel tray.

A plastics container of modular construction includes a first plastics segment and a second plastics segment. The first and second plastics segments are connected to one another by plastics welding. At least one of the first and second plastics segments has a paintable surface layer on an outer side thereof or is comprised of a paintable material.

A motorcycle has a front part and a rear part, the front part including handlebars and a handlebar stem with which there is associated an electronic damper controlled by a control unit controlling the action of the damper on the handlebars, provision being made for a device detecting the angle of rotation of the handlebars and the velocity of rotation of the handlebar stem within a handlebar head of the frame. The control unit includes a first block which receives data on the velocity of rotation of the handlebar stem and which on the basis of such velocity determines the presence of oscillating or weave movement of the motorcycle or a wobble movement of the handlebars, the first block of the control unit being connected to a second block and a third block of such unit which alternatively generate a control signal intended to damp the handlebar stem on the basis of the determination made by the first block so that any weave and/or wobble movement is cancelled out.

A fuel tank structure that makes it difficult for mud, water, dust or the like to enter a fuel tank and that can restrict a fuel leakage path when a vehicle falls. A fuel cap includes a cap body mounted to a fuel supply port of a fuel tank, and a pressure adjusting device provided in the cap body to adjust a pressure in the fuel tank. In the fuel cap, a space is formed as a hermetically closed space in which the pressure adjusting device is accommodated, and the space communicates with an exterior of the fuel tank via a breather tube.

A fuel tank structure that makes it difficult for mud, water, dust or the like to enter a fuel tank and that can restrict a fuel leakage path when a vehicle falls. A fuel cap includes a cap body mounted to a fuel supply port of a fuel tank, and a pressure adjusting device provided in the cap body to adjust a pressure in the fuel tank. In the fuel cap, a space is formed as a hermetically closed space in which the pressure adjusting device is accommodated, and the space communicates with an exterior of the fuel tank via a breather tube.