What is the speed rating code on tires?
2 Answers
Tire codes represent the tire width, aspect ratio, rim diameter, load index, and speed rating symbol. Here is some information about tires: 1. Introduction: The sidewall thickness of a tire is 5mm. Based on the carcass structure, automotive tires can be divided into pneumatic tires and solid tires. Most modern vehicles use pneumatic tires. Depending on the internal air pressure, pneumatic tires can be classified into high-pressure tires, low-pressure tires, and ultra-low-pressure tires. 2. Types: Low-pressure tires are commonly used in various vehicles. Pneumatic tires can also be divided into tube tires and tubeless tires based on their structure. Passenger cars generally use tubeless tires. Depending on the arrangement of internal cord layers and cushion layers, tires can be further categorized into radial tires and bias-ply tires. Radial tires are widely used in vehicles. These specifications are all marked on the tire sidewalls.
Those tiny letters on the tire are speed rating codes, like H or V. Simply put, they indicate the maximum safe speed the tire can handle. When I bought my car, I researched it—for example, H means 210 km/h, and V means 240 km/h. You need to check if your tires can handle highway speeds. If you casually replace them with lower-rated tires, driving fast could cause a blowout, which is extremely dangerous. Different cars come with different codes—sports cars have W or Y, while family cars are fine with T or H. I suggest everyone check their car’s manual before replacing tires; don’t just go for the cheapest option. Also, when inspecting tires, pay attention to whether the code is worn out. If it’s illegible, replace the tire immediately.
