How to Read the Speed Code on Tires?
2 Answers
The codes on tires represent the tire width, aspect ratio, rim diameter (in inches), load index, and speed rating. Here is the relevant information: 1. 160/60R-16-80H: In 160/60R-16-80H, 160 indicates the tire width is 160mm, 60 means the section height is 60% of the width, R stands for radial tire, 16 denotes the rim diameter is 16 inches, 80 is the load index, and H indicates the speed rating is H. 2. 205/55R-16-91H: In 205/55R-16-91H, the H here is the speed rating. H represents a maximum speed of 210. Common speed ratings include T, H, V, W, and Y, which correspond to 190, 210, 240, 270, and 300 respectively.
Every time I change tires, I check the speed rating code—it's crucial for safe driving. This code is located on the tire sidewall, represented by a letter within a string of alphanumeric characters. For example, a common 'H' indicates a maximum speed of 210 km/h, while 'V' stands for 240 km/h. You'll need to crouch down and carefully inspect the tire sidewall, usually near the size information. The position might be obscured by mud, so wiping it with a cloth makes it easier to read. Remember, never exceed this speed limit, as overheating the tire can lead to dangerous blowouts. With 20 years of driving experience, I've witnessed too many accidents caused by neglecting this code. When buying a car or replacing tires, ensure they match your vehicle's top speed. Regularly inspecting tire wear during maintenance also helps prevent issues. Understanding speed ratings is simple but directly impacts daily driving safety.
