South Australian Numbered Regulations South Australian Numbered Regulations(1) A motor vehicle with 4 or more wheels, and a trailer, must have a rear-facing red reflector towards each side of its rear.
(2) A motor bike, a sidecar attached to a motor bike, and a motor trike, must have a rear-facing red reflector.
(3) The centre of each reflector must be—
(a) at the same height above ground level; and
(b) not over 1.5 metres above ground level.
(4) However, subrule (3) does not apply to a reflector fitted to a sidecar attached to a motor bike.
(5) A reflector fitted to a motor vehicle with 4 or more wheels, or a trailer, must not be over 400 millimetres from the nearer side of the vehicle.
(6) A vehicle fitted with rear-facing red reflectors in accordance with subrule (1) or (2) may be fitted with additional red reflectors at any height above ground level or at any distance from the side of the vehicle.