What tyre size is legal?
Tyres. The overall diameter of a wheel and tyre fitted to a vehicle must not be more than 50 mm (4WDs) or 15 mm (other vehicles) larger than the largest tyre size listed on the tyre placard and not more than 15 mm less than the smallest tyre size listed on the placard on all vehicles. On your example P235/70R15 tire, the P designates it as a standard passenger-car tire, 235 is the section width, 70 is the aspect ratio, R means the tire is of radial construction, and 15 is the wheel diameter the tire mounts on.Aspect Ratio, it is the ratio of the sidewall height to the cross section width.For example, designation “R13” in the marking of tyre 155/70R13 can be read as follows: The letter R does not mean the radius, but the fact that the tyre is radial. The number 13 indicates that the diameter at rim seat is 13 inches.
What is the speed limit of 155 70 R13 tyre?
Speed Rating of the selected tyre is ‘T’, which refers to a maximum speed capacity of 190km/h. T and 102H are service descriptions. Load Index, what this means is, the tire is capable of carrying weight up to, 1,874 lbs per tire. The T and H are speed Ratings, this indicates that a tire is capable of speeds up to, 118 mph and 130 mph (respectively).