South Australian Numbered Regulations

ROAD TRAFFIC (LIGHT VEHICLE STANDARDS) RULES 2018 (NO 5 OF 2018) - REG 50

50—Tyres—manufacturer’s rating

        (1)         This rule applies to a motor vehicle if the vehicle—

            (a)         has 4 or more wheels; and

            (b)         was built after 1972.

        (2)         However, this rule does not apply to a tyre if the tyre—

            (a)         is recommended by the vehicle builder as suitable for limited use on the vehicle in special circumstances at a speed less than the speed applying to the vehicle under subrule (3); or

            (b)         is being used in an emergency as a temporary replacement for a tyre complying with this rule.

        (3)         A tyre fitted to a motor vehicle must, when first manufactured, have been rated by the tyre manufacturer as suitable for road use at the lesser of—

            (a)         a speed of at least—

                  (i)         for a car with special features for off-road use—140 kilometres an hour; or

                  (ii)         for another car—180 kilometres an hour; or

                  (iii)         for another motor vehicle—120 kilometres an hour; and

            (b)         the vehicle’s top speed.

Example for paragraph (a)(i)—

A four-wheel drive vehicle.

        (4)         This rule applies to a vehicle instead of the tyre speed category requirements in the relevant ADR.