National Road Traffic Act, 1996 (Act No. 93 of 1996)
National Road Traffic Regulations, 2000
Chapter IX : Road Traffic Signs and General Speed Limit
Part II : Speed limits
294. Speed limit in relation to tyres
Notwithstanding the provisions of regulations 292 and 293, no person shall operate on a public road a motor vehicle which is fitted with pneumatic tyres, at a speed in excess of the speed referred to in the standard specification SABS 1550 "Motor Vehicle Tyres and Rims: Dimensions and Loads", Part 1: "General", Part 2: "Passenger car lyres", Part 3: "Commercial vehicle tyres", or as approved by the manufacturer of the tyre concerned.