A rear cushion unit has an upper end mounted on a swing arm and a lower
end coupled to pivot brackets in a position below a pivot shaft. The
pivot brackets are independent of each other and are not coupled to each
other. With the above construction, a fuel tank, electric parts, or other
parts, for example, can be clustered between the left and right brackets.
Accordingly, the parts can be disposed near the center of gravity of the
vehicle body. Therefore, the maneuvering capability of racing and
off-road vehicles incorporating such an arrangement can be increased. The
vehicle frame can be simplified in structure and can be manufactured at a
reduced cost. When the vehicle is assembled, the distance that the worker
needs to move can be reduced, and hence the productivity of the vehicle
is increased. The size of the vehicle is reduced because of the clustered
arrangement of the parts.