A two-wheeled vehicle includes a frame having a front frame portion, a mid-frame portion, and a rear frame portion. The mid-frame portion is coupled to the rear frame portion and the front frame portion. The vehicle further includes a plurality of ground-engaging members for supporting the frame. The front frame portion is removably coupled to the mid-frame portion with a plurality of frame members extending between the front frame portion and the mid-frame portion.

A two-wheeled vehicle includes a frame having a front frame portion, a mid-frame portion, and a rear frame portion. The mid-frame portion is coupled to the rear frame portion and the front frame portion. The vehicle further includes a plurality of ground-engaging members for supporting the frame. The front frame portion is removably coupled to the mid-frame portion with a plurality of frame members extending between the front frame portion and the mid-frame portion.

A pedal powered motor-assist golf bag cart/cycle (10) is a personal riding golf cart/cycle adapted to transport a rider and a golf bag (12) for use on a golf course. The cart/cycle (10) is generally symmetrical about a longitudinal plane (11) and includes a frame (14) with a seat (16), a front wheel and steering components (18), a rear wheel (20), an inclined bag support (22), a pedal subassembly (24), a motor assist subassembly (26), and controls (28). It is adapted to be propelled by either the pedal subassembly (24), the motor subassembly (26), or both together.

A pedal powered motor-assist golf bag cart/cycle (10) is a personal riding golf cart/cycle adapted to transport a rider and a golf bag (12) for use on a golf course. The cart/cycle (10) is generally symmetrical about a longitudinal plane (11) and includes a frame (14) with a seat (16), a front wheel and steering components (18), a rear wheel (20), an inclined bag support (22), a pedal subassembly (24), a motor assist subassembly (26), and controls (28). It is adapted to be propelled by either the pedal subassembly (24), the motor subassembly (26), or both together.

In a frictional propulsion device comprising a frame, a main wheel including driven rollers rotatably supported by an annular core member about a tangential direction and a pair of drive disks each carrying drive rollers rotatable about a rotational center line at an angle with respect to both a tangential line of the drive disk and the rotational center line of the drive disk such that the drive rollers at least partly engage the driven rollers, each drive disk includes a hub rotatably supported by the support shaft, a disk member attached to a peripheral part of the hub, and holder beams arranged circumferentially between the hub and the disk member such that each holder beam is attached to the hub at a first end thereof and to the disk member at a second end thereof, each drive roller being rotatably supported by a corresponding adjoining pair of holder beams.

In a frictional propulsion device comprising a frame, a main wheel including driven rollers rotatably supported by an annular core member about a tangential direction and a pair of drive disks each carrying drive rollers rotatable about a rotational center line at an angle with respect to both a tangential line of the drive disk and the rotational center line of the drive disk such that the drive rollers at least partly engage the driven rollers, each drive disk includes a hub rotatably supported by the support shaft, a disk member attached to a peripheral part of the hub, and holder beams arranged circumferentially between the hub and the disk member such that each holder beam is attached to the hub at a first end thereof and to the disk member at a second end thereof, each drive roller being rotatably supported by a corresponding adjoining pair of holder beams.

A vehicle includes left and right main frames that may have their front ends connected to a head pipe, and may be disposed such that the distance between the left and right main frames is progressively greater in a rearward direction. The left and right main frames may be connected to each other by an upper plate-like member, and the upper plate-like member may have a front edge spaced rearwardly from the head pipe and have left and right ends welded respectively to the left and right main frames.

One embodiment provides a rear portion structure of a saddle-ride type vehicle. The structure includes: seat frames inclined rearward and upward and supporting a riding seat; and a rear cowl having an upper cowl and a lower cowl. The upper cowl includes: a first cowl; and a second cowl which is connected to the first cowl and forms an opening upper edge portion of an opening for exposing a tail light. The lower cowl includes: a third cowl; and a fourth cowl which is connected to the third cowl and forms an opening lower edge portion of the opening. An approximately-U-shaped recessed portion is opened at a rear end of the third cowl. The fourth cowl forms the opening lower edge portion while covering the U-shaped recessed portion.

One embodiment provides a rear portion structure of a saddle-ride type vehicle. The structure includes: seat frames inclined rearward and upward and supporting a riding seat; and a rear cowl having an upper cowl and a lower cowl. The upper cowl includes: a first cowl; and a second cowl which is connected to the first cowl and forms an opening upper edge portion of an opening for exposing a tail light. The lower cowl includes: a third cowl; and a fourth cowl which is connected to the third cowl and forms an opening lower edge portion of the opening. An approximately-U-shaped recessed portion is opened at a rear end of the third cowl. The fourth cowl forms the opening lower edge portion while covering the U-shaped recessed portion.

A saddle-ride type vehicle includes an air-cooled fuel cell unit that is mounted on a body frame behind a head pipe and in front of a pivot frame and uses taken-in outside air for supplying oxygen and cooling a unit. The fuel cell unit includes an outside air intake open forward below the head pipe and an exhaust port open rearward above a pivot. A seat frame has a monocoque structure also having a configuration of an exhaust duct for guiding exhaust gas from the fuel cell unit to a back of an occupant's seat. Accordingly, in the saddle-ride type vehicle, it is possible to realize more efficient ventilation in utilizing a fuel cell.