Abstract: A radiator device particularly adapted for use on off-road type vehicles includes a radiator body disposed rearwardly of the seat and spatially offset therefrom. The radiator body is enclosed about its periphery by a shroud that includes laterally extending, air-gathering wings. Fins forming part of a lattice-like grill are inclined in the direction of offset of the radiator body to direct the gathered air into the radiator body.

Abstract: An off-road vehicle contains a floor panel including a first inclined portion facing the seat and forming a foot rest and a second inclined portion disposed adjacent to and facing the seat and having an irregularly formed surface thereon to protect the driver against slipping upon entering and existing the vehicle. The second inclined portion has an angle of inclination less than that of the first inclined portion and has surface irregularities comprising longitudinally spaced flats interconnected by angularly displaced surface sections.

Abstract: A cooling device is mounted on an off-road vehicle including a vehicle frame having a pair of main pipe members spaced from each other transversely of the vehicle and extending longitudinally of the vehicle, the main pipe members having rear portions joined to each other, a central roll bar mounted on the main pipe members substantially centrally in their longitudinal direction, and a rear roll bar coupled between the rear ends of the main pipe members and the central roll bar, and an engine mounted on a lower portion of the vehicle frame rearwardly of the central roll bar. The cooling device includes a radiator positioned in a space surrounded by the main pipe members, the central roll bar, and the rear roll bar, and mounted on a support pipe extending and joined between the main pipe members. The cooling device also has a shroud attached to the rear surface of the radiator, and a fan motor fixedly accommodated in the shroud.

Abstract: An off-road vehicle has a vehicle frame of piping, a power unit including an engine, a fuel tank, an air cleaner, and other components, and a double-wishbone suspension supporting a rear wheel on the vehicle frame. The vehicle frame has a side frame member positioned laterally of the power unit and a rear frame member positioned rearwardly of the power unit. The suspension comprises a knuckle having a proximal end and an upward extension, a lower arm assembly coupled between the proximal end of the knuckle and the side frame member, and a bifurcated upper arm having a vertex end pivotally coupled to the upward extension of the knuckle, a front leg pivotally coupled to the side frame member, and a rear leg being pivotally coupled to the rear frame member.

Abstract: An off-road vehicle comprises a vehicle frame, a pair of front wheels rotatably supported on a front portion of the vehicle frame, a pair of rear wheels rotatably supported on a rear portion of the vehicle frame, and a framework on each of lateral sides of the vehicle frame and including upper and lower pipes inclined upwardly in a forward direction and substantially parallel to each other. Each of the front wheels is rotatably mounted on the framework by means of a front wheel suspension mechanism comprising knuckle arm supporting the front wheel, a V-shaped upper arm having a base pivotally mounted on an upper portion of the knuckle arm and front and rear ends pivotally attached to the upper pipe at front and rear positions thereon, and a V-shaped lower arm having a base pivotally mounted on a lower portion of the knuckle arm and front and rear ends pivotally attached to the lower pipe at front and rear positons thereon.