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. The following editor of Xianji.com will tell you what are the tire speed levels? What do the letters and numbers 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 tire performance and the higher the price. The application range of tires of different speed grades is also different. Tires of P-T (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 High-end cars, and the best-performing W-Z tires 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 true red radial tire, and 16 is the diameter of the tire. It is inches, 95 is the load factor, that is, the maximum weight that each tire can bear, h is the speed level, and the H level is 210. The unit is kilometers 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 large proportion of the large number of brands in English that are tires.
1. Bridgestone/Japan, BRIDGESTONE 2, Michelin/France, MECHELIN 3, Goodyear/USA, 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 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 represent?
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.
There is also a safety block on the tire tread. 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: some tires are single-guided, and technicians need to pay attention when replacing tires. The arrow points in the direction of the tire's forward wheel movement. The upside down will not only wear out the pattern quickly, but also greatly reduce it. Service life.
