What is 101W on a tire?
2 Answers
Tire 101W represents the load index and speed rating of the tire. 101 indicates a maximum load capacity of 825kg, and W means the maximum speed should not exceed 270km/h. Speed rating: The speed rating refers to the maximum speed a tire can achieve under specified load and inflation pressure standards. Load index: The load index indicates the maximum load capacity of a single tire under specified conditions. Here is a partial introduction to tires: 1. Tires are classified by usage, including load-bearing tires, passenger car tires, and mining tires, among others. Load-bearing tires must not only have the size specifications marked on the sidewall but also indicate the ply rating. 2. The ply rating of load-bearing tires does not refer to the actual number of layers but rather to the load performance of tires made with high-strength material cords, which is equivalent to the number of cotton cord layers in tires made with cotton cords.
I always pay special attention to the markings when changing tires. The 101w refers to the tire specifications. The 101 is the load index, indicating that a single tire can bear a maximum load of 825 kilograms; the w is the speed rating, meaning the tire supports a maximum speed of 270 kilometers per hour. Such high-load, high-speed tires are generally used on luxury cars or sports cars, offering excellent grip performance. However, I remind my friends not to just look at the markings when changing tires—the production date is also crucial. The four-digit number on the tire sidewall, such as 0723, means the tire was produced in the 7th week of 2023. Tires older than 5 years are not recommended for use, even if the tread depth is good. Additionally, there can be significant performance differences between 101w tires from different brands. For example, Michelin and Bridgestone tires vary greatly in high-speed stability.
