PART IITwo or three-wheel motor vehicles and quadricycles
Mopeds
Class A(a)
A two or three-wheel motor vehicle with or without a side-car which is fitted with an internal combustion engine having a cylinder capacity not exceeding 50 cm3 and a maximum speed of not more than 45 km/h.
Class A(b)
A motor vehicle as defined in Class A(a) which is drawing a trailer.
Motorcycles
Class B(a)
A two-wheel motor vehicle (other than a moped) with or without a sidecar which—
(a)is fitted with an internal combustion engine having a cylinder capacity of more than 50 cm3 ; or
(b)has a maximum speed of more than 45 km/h.
Class B(b)
A motor vehicle as defined in Class B(a) which is drawing a trailer.
Motor tricycles
Class C(a)
A three wheel motor vehicle (other than a moped) with three symmetrically arranged wheels which—
(a)is fitted with an internal combustion engine having a cylinder capacity of more than 50 cm3; or
(b)a maximum speed of more than 45 km/h.
Class C(b)
A motor vehicle as defined in Class C(a) which is drawing a trailer.
Light quadricycles
Class D(a)
A four-wheel motor vehicle having—
(a)an unladen mass of less than 350 kg;
(b)a maximum speed of not more than 45 km/h; and
(c)in the case of a vehicle with a spark ignition engine, an engine with a cylinder capacity not exceeding, 50 cm3 and, in the case of vehicles with other types of engine, an engine with a maximum net power not exceeding 4 kW.
Class D(b)
A motor vehicle as defined in Class D(a) which is drawing a trailer.
Quadricycles
Class E(a)
A four wheel motor vehicle (other than a light quadricycle) which has—
(a)an unladen mass of, in the case of vehicles intended for carrying goods, not more than 550 kg and, in other cases, not more than 400kg; and
(b)an engine with a maximum net engine power not exceeding 15kW.
Class E(b)
A motor vehicle as defined in Class E(a) which is drawing a trailer.