The load rating of a tyre is the 2- or 3-digit number shown on the sidewall to indicate the loading capacity of the tyre. For example, the highlighted number on the image above is “91”. It means that this tyre can be loaded to a maximum of 615 kilograms. Since there are 4 tyres on a vehicle, the maximum total kilograms for that vehicle, with those tyres, is 2,460 kilograms. You can find the load rating on the sidewall of your tyre, as shown in the image above.