This International Standard defines terms relating to the dimensions of three-wheeled mopeds and motorcycles as defined in ISO 3833. Unless otherwise stated, it applies to - three-wheeled mopeds and motorcycles with one front wheel and two rear wheels; - three-wheeled mopeds and motorcycles with two front wheels and one rear wheel; - two-wheeled mopeds and motorcycles equipped with a side-car. lt does not cover - road vehicles controlled by a pedestrian; - road vehicles designed for the exclusive use of handicapped persons; - agricultural or forestry tractors; - contractors’ plant or equipment; - earth-moving equipment. lt does not deal with measurement methods, nor with the units used in reporting the results, nor with the accuracy required, nor with the Order of magnitude of the dimensions defined.