Motorcycle having evaporating fuel treatment apparatus

A motorcycle comprising:

• a vehicle body frame including a head pipe configured to axially support a steering shaft, a main frame extending rearwardly and downwardly from the head pipe, and a down tube extending downwardly from the head pipe;
• an internal combustion engine supported by the vehicle body frame, including a crankcase, a cylinder, and a cylinder head, and a head cover, the cylinder extending upwardly from the crankcase;
• a fuel tank arranged on the upper side of the main frame;
• and
• an air-intake apparatus configured to supply air to the internal combustion engine, wherein an evaporable fuel storage container configured to store evaporating fuel generated in the fuel tank of the motorcycle and supply the evaporating fuel to the air-intake apparatus when the internal combustion engine is in operation is arranged in a space on a lower side of the fuel tank and on a front or on an upper side of the cylinder of the internal combustion engine on an upper rear of the down tube.