What Does Car Tire Specification Mean?

[NolanMarie]

Here is the introduction to car tire specifications: 1. Small cars: With a displacement between 0.8-1.5, the corresponding tire specifications are applicable within the range of 155/65R1373T-175/70R1477H. 2. Compact cars: With a displacement between 1.4-2.0, the corresponding tire specifications are applicable within the range of 185/60R15-205/40R16. 3. Mid-size cars: With a displacement between 1.5-2.5, the corresponding tire specifications are applicable within the range of 205/55R16-255/35R18. 4. Mid-to-large cars: With a displacement between 2.0-3.0, the corresponding tire specifications are applicable within the range of 225/45R17-265/30R19. 5. Large cars: With a displacement between 3.0-6.0, the corresponding tire specifications are applicable within the range of 255/40R18-295/30R20.

[StEthan]

The tire specifications are the combination of numbers and letters printed on the sidewall, like the 215/60R16 95H on my car's tires. This is essentially the tire's ID number. 215 represents the width of 215 millimeters, 60 is the aspect ratio, meaning the sidewall height is 60% of the width. R stands for radial construction, which is pretty much standard these days. 16 is the rim diameter in inches. 95 indicates the load index, translating to each tire being able to carry 690 kilograms. Finally, H is the speed rating, supporting a maximum speed of 210 km/h. When replacing tires, it's crucial to match the original specifications exactly. Last time I cheaped out and got the wrong model, it caused misalignment and uneven tire wear, wasting money in the end. Remember, for winter tires, you also need to look for the snowflake symbol.

[VanHector]

Choosing tires is like picking shoe sizes - wrong specifications can make the whole vehicle uncomfortable. For example, my SUV uses 265/65R17 tires. The first number 265 indicates the tread width in millimeters; the middle number 65 is the aspect ratio - the smaller this number, the thinner the tire and the better the sport performance; R stands for radial construction; and 17 corresponds to the wheel rim size. The following parameters like 102T mean: 102 represents a load capacity of 850 kg, while T indicates a maximum speed of 190 km/h. When changing tires, all these data must match, especially pay attention to tire width and rim diameter, otherwise they might rub against the wheel arches. For winter snow tires, remember to check for the snowflake symbol on the tire sidewall.

[OwenAnn]

Those numbers on the side of the tire are not simple. For example: my tire is marked 205/55R16 91V. 205 is the tire width—the wider it is, the better the grip, but it also consumes more fuel. The 55 aspect ratio affects comfort; a higher number means a smoother ride over bumps. R stands for modern radial construction, and 16 is the rim size it fits. 91 indicates a single tire load capacity of 615 kg, and V means it can handle speeds up to 240 km/h. If the width or diameter is incorrect when changing tires, the car's computer will show a fault code, and the tire pressure monitoring system may fail. Before long trips, I always check these parameters to ensure they're intact.