Provided is a motorcycle incorporating a supercharger which can prevent an increase in a size of a vehicle body. A motorcycle comprises a supercharger which compresses intake air; an air-intake chamber which is placed downstream of the supercharger, stores the intake air compressed in the supercharger, and guides the intake air from the air-intake chamber to a combustion chamber of an engine; a fuel tank placed above the engine, wherein the air-intake chamber is placed between the fuel tank and the engine, and wherein the fuel tank includes a recess-forming section provided with a recess on a bottom surface of the fuel tank in such a manner that the bottom surface of the fuel tank does not interfere with the air-intake chamber.