We all know that the tire is one of the most important parts of a car, but the attention is very low. Many car owners are also repairers when changing the tires. They say that they can change what model they want. They only need to pay on demand. . In fact, this is not good, because you don't know if this tire is suitable for you or whether it is shoddy. So if you want to be a qualified old driver, remember to know the basic tire knowledge. What are the tire speed levels? What do the alphanumerics on the tires mean?
1. What are the tire speed levels
The speed rating indicates the maximum speed at which the tire can carry a specified load under specified conditions.
[Code-safe speed limit km/h]:
[L-120] [M-130] [N-140] [P-150] [Q-160] [R-170]
[S-180] [T-190] [U-200] [H-210] [V-240] [ZR-240]
Generally speaking, the lower the letter representing the tire speed grade, the better the performance of this tire and the higher the price. The application range of tires of different speed grades is different. P-T tires (maximum speed 150-190km/h) are suitable for small and compact cars, and U-V (maximum speed 200-240km/h) tires are suitable for medium For high-end cars, the W-Z tires with the best performance are usually used in large luxury cars and super sports cars because they can carry a maximum speed of 240-300km.
2. What do the letters and numbers on the tire mean?
Take 215/60 R16 95H as an example, 215 is the tire width in millimeters, and 60 is the aspect ratio, that is, the thickness of the sidewall of the tire as a percentage of the tire width. R is the true red radial tire and 16 is the diameter of the tire. It is inches, 95 is the load-carrying factor, that is, the maximum weight that each tire can bear, h is the speed level, and the H level is 210 units per hour.
Q: 160km/h; R: 170km/h; S: 180km/h; T: 190km/h; H: 210km/h; V: 240km/h; W: 270km/h; Y: 300km/h; Z: The ZR speed is higher than 240km/h.
T-class for small micro face or micro car
H class for small cars
V-class for compact cars
W class for medium-sized vehicles
Y-class or higher for medium and large luxury cars or sports cars
When buying tires, car owners should choose suitable tires according to the speed and load capacity of your own vehicle.
Tires generally account for a larger proportion of the large number of brands in English that are tires.
1. Bridgestone/Japan, BRIDGESTONE 2, Michelin/France, MECHELIN 3, Goodyear/U.S., GOODYEAR 4, Continental/Germany continental 5, Pirelli/Italy, PIRELLI 6, Sumitomo Rubber/Japan, SUMITOMO 7, Yokohama Rubber /Japan, YOKOHAMA 8, Hankook Tire/Korea, HANKOOK 9, Cooper Tire Rubber/American COOPER 10, Kumho/Korea KUMHO tire brands should be very common to everyone, the general vehicle factory configuration is the above tire brands
Another thing worth noting is the tire pattern. Just like your shoe is a brand but a style is the same, it’s okay to wear, but it’s uncomfortable. The vehicle is the same. The tire pattern of the same wheelbase must be the same. Otherwise, uneven wear and tear will result in poor vehicle handling.
DOT, this is usually ignored by everyone, but it is the key to judging whether a tire is good or bad. What does it mean?
It represents the production date of the tire. We all know that if the tire is made of rubber, it will have aging. If the tire is produced for 3 years, it will not be able to get on the car even if it is not used. You know, why is that? When buying tires, do not choose aging tires for cheap. This will not only bring losses to your property, but also your life will always be in danger.
Generally, the market price of tires is very transparent, so too much difference must be problematic.
The tire tread also has a safety block. Generally, if the tire pattern is higher than the safety block 1.6MM, the tire needs to be replaced. Look at the tire above, the pattern and the safety block are already on the same plane, so such a tire is extremely dangerous.
One more thing to note is that some tires are single-guided, and technicians need to pay attention when replacing tires. The direction of the arrow is the direction the tires move forward. The upside-down, not only the pattern wears quickly, but also greatly reduces Service life.
The above is to explain what are the tire speed levels? All the meaning of the letters and numbers on the tires. I believe that after reading this article, everyone has a certain understanding of the meaning of the letters and numbers on car tires. When you need to change tires in the future, you can think about it yourself. After you understand, you will not be afraid of being pitted.
