A motorcycle having high durability and a large space below a seat includes an internal space at least a portion of which is located between an engine unit and a seat provided in a cover member. The engine unit is pivotally suspended on a body frame. A center axis of a cylinder extends obliquely upward from a crankcase and forwardly. Oil reservoirs and provided in a bottom of a crank chamber and a bottom of a portion of a transmission chamber located in a front portion of a transmission case, respectively. The oil reservoirs are communicated with each other by a communication path. A bottom surface of the transmission chamber in the portion in which portion the oil reservoir is provided is located downward of the bottom surface of the portion rearward of the oil reservoir of the transmission chamber.