PURPOSE: To hinder the run-wind from coming round into the rear surface of a wide front fender via the inside of a vehicle body and get the run-wind to comfortably hit an engine without largely disturbing the flow of the run-wind by bending backward the inner side brim of the rear part of a front fender so as to form a wind introducing part.

CONSTITUTION: A front fender 42, a petty cargo box 44, and a cover 46 are formed into one body. The front fender 42 is bent in such a manner that it covers a front wheel 18 from the top to the tail of the wheel 18. And the brims of the rear part of the fender 42 on the inner side of a vehicle body are bent backward, forming wind introducing parts 42A and 42A. When the vehicle travels straightforward, the run-wind, which has entered the space between both wheels 18a and 18b, is introduced from the rear part of the front fender 42 to the central side of the vehicle body after being streamlined by the wind introducing parts 42A. And this run-wind comfortably hits an engine facing the space between the both wind introducing parts 42A and 42A. The run-wind, which has hit the engine 34, flows smoothly from an opening above a foot stool 52 partly because the fact that the pressure at the rear surface of the rear part of the front fender 42 becomes negative acts advantageously.