Unit swing type power unit for a vehicle and vehicle

摘要

The present invention relates to a unit swing type power unit for a vehicle, in particular a saddle-ride type vehicle, in which a transmission casing (818) accommodating therein a continuously variable transmission mechanism (817) with a V-belt (816) wound around a drive side sheave (814) and a driven side sheave (815), and an engine body (820) having a cylinder body (822) and a crankshaft (821) defining a crank axis (P) are joined integrally to be supported on a vehicle body frame (801) to be able to swing, wherein the cylinder body (823) is formed so that a virtual plane (B'), which includes a cylinder axis (B) and is in parallel to the crank axis (P), passes through a position displaced toward a side of the crank axis (P), and vehicle provided with said power unit.