Cargo-carrying wheeled vehicle

A cargo-carrying wheeled vehicle, said vehicle comprising:

• at least a cargo hold chassis (10);
• at least a rider support chassis (20) configured to be operatively behind said cargo hold chassis (10), in that, said cargo hold chassis (10) and said rider support chassis (20) cooperate to maintain centre of gravity of said vehicle, after addition of cargo to said cargo hold chassis (10) and after addition of rider to said rider support chassis (20), to obtain a naturally balanced position for said vehicle in a loaded as well as an unloaded condition,
• a back lateral support member of said cargo hold chassis and a front lateral support member of said rider support chassis;
• wherein the back lateral support member of said cargo hold chassis and the front lateral support member of said rider support chassis is a single same member;
• wherein, an operative horizontal spaced apart distance between a centre of gravity of cargo in said cargo hold chassis and a centre of gravity of a rider on said rider support chassis is defined by a first locus of points which lie within two tenths of a wheelbase length and eight tenths of said wheelbase length;
• wherein, a combined centre of gravity being formed by a centre of gravity of said cargo in said cargo hold chassis, a centre of gravity of said cargo hold chassis, a centre of gravity of said rider on said rider support chassis, and a centre of gravity of said rider support chassis, wherein,
• said combined centre of gravity being defined by a second locus of points, on an operative horizontal axis of said vehicle, which lie within a first value and a second value, said first value being a tolerance range of one fourth times the wheelbase length added to half the wheelbase length, said second value being a tolerance range of one fourth times the wheelbase length subtracted from half the wheelbase length;
• and
• said combined centre of gravity being defined by a third locus of points, on an operative vertical axis of said vehicle, which lie within a third value and a fourth value, said third value being defined by radius of a wheel of said vehicle, said fourth value being defined by radius of a wheel of said vehicle added to a tolerance value of one third the wheelbase length.