Motorized two-wheel vehicle has support wheels on either side of chassis frame selectively lowered into contact with road surface when vehicle is moving slowly

摘要

The two-wheel vehicle (1) has a chassis, a drive motor and in-line front and rear wheels (4,5), at least one of which is driven by the motor, with vertically adjustable support wheels (7) on either side of the chassis, selectively lowered into contact with the road. The support wheels contact the road at a given distance (S) from the longitudinal axis (6) and are positioned between the front and rear wheels.