To improve transmission efficiency by simplifying a structure of the whole vehicle and reducing the cost of manufacturing the vehicle by fundamentally changing the configuration of a wheel.

In the wheel of the vehicle, a spoke 5 of the wheel 1 is supported to be unable to rotate on the vehicle body 3, a rim 9 of the wheel is supported to be able to rotate on the outer end 5a of the spoke, a tire 17 is installed on the outer surface of the rim, a driving means 19 is arranged inside of the rim, the driving means is fixed on the vehicle body or the spoke, a rotation driving arm 21 is projectively provided in the driving means, and the rim is rotated by the driving means by fixing the outer end 21a of the rotation driving arm on the rim. The rim of the wheel is supported to be able to rotate through a rolling element 7 or a shaft bearing 23 on the outer end of the spoke. The driving means is desirably an electric motor.