What does 91w behind the tire mean?
1 Answers
Tire 91w refers to the maximum load index and maximum speed under specified conditions, indicating that the maximum load capacity of a single tire is 615 kilograms and the maximum speed it can withstand is 270 kilometers per hour. 91 represents the load index, which is the numerical value indicating the maximum load a tire can bear under specified conditions at maximum air pressure. w represents the speed index, ranging from j to z, where each letter corresponds to the maximum speed the tire is allowed under the relevant load index. These two factors together are called the service description and are interdependent.