A straddled vehicle, including a vehicle frame structure, a drive unit including a drive motor that receives electric power and outputs driving power, a driving wheel that receives the driving power, and an electric power generation unit. The electric power generation unit includes an electric power generation engine configured to output engine power, and an electric power generator that is fixed to the electric power generation engine and is electrically connected to an electric power transfer medium having flexibility. The electric power generator is configured to convert the engine power into the electric power, and supply the electric power to the drive motor via the electric power transfer medium. The straddled vehicle is series-hybridized by the drive unit and the electric power generation unit. The electric power generation engine is swingably supported, independently of the drive unit, by the vehicle frame structure, such that the engine power is not mechanically supplied to the driving wheel.