To provide a rear-wheel drive pedaling vehicle using no fossil fuel so that bad influences due to global warming, CO2 and environmental pollution can be reduced somewhat.

In this rear wheel drive pedaling vehicle with a flywheel, when a driver treads an acceleration pedal 2 with right and left feet alternately, an upward and downward movement of the acceleration pedal is converted into a rotational movement by a crank 10 incorporated in a flywheel 4, and the rotation is transmitted to a rear wheel shaft pulley 7 by a pulley and a belt 5 and a rear wheel 6 rotates. In this manner, no fossil fuel is used for the vehicle, and the vehicle can be made small and ridden easily. Anybody can drive for the first time without any practice. The vehicle enables a long-distance drive by adding seats, and an acceleration performance like a small automobile can be added according to the size of the device.