What does 91T mean on a tire?
1 Answers
91 represents the tire's load index: maximum load capacity is 615 kg. T is the tire's speed rating symbol: maximum speed is 190 km/h. Introduction to tire load index: The load index refers to the numerical value indicating the maximum load a tire can bear under specified conditions at maximum air pressure. The numbers range from 75 to 126, corresponding to load capacities from 387 kg to 1700 kg. Introduction to speed rating: The speed rating indicates the maximum speed at which a tire can carry a specified load under defined conditions. Different tires display their speed ratings using English letters on the sidewall. These letters represent certified speed ratings ranging from 4.8 km/h to 300 km/h, denoted by letters from A1 to ZR.