Series hybrid type straddled vehicle

A straddled vehicle of a series hybrid type, comprising:

• a frame structure including a frame body;
• a rear arm that is swingably supported by the frame structure;
• a driving wheel that is rotatably supported by the rear arm;
• a drive motor that is supported by the frame structure or the rear arm, the drive motor being configured to drive the driving wheel;
• and
• an electric power generation unit including an electric power generation engine and an electric power generator, wherein
• the electric power generation engine is arranged with an offset toward a first direction from a center of the straddled vehicle with respect to a left-right direction of the straddled vehicle, and is positioned not to overlap the drive motor when viewed in the left-right direction;
• the electric power generator is positioned further in a second direction than the electric power generation engine, and is arranged to overlap the electric power generation engine, but not to overlap the drive motor, when viewed in the left-right direction, the second direction being in the left-right direction of the straddled vehicle and being opposite to the first direction;
• and
• the electric power generator is driven by the electric power generation engine to generate electric power for driving the drive motor, the electric power generation unit being supported by the frame body, and not being supported by the rear arm, such that the electric power generation unit constitutes the frame structure or does not constitute the frame structure.