What are the specification parameters of car tires?
2 Answers
Car tire parameters include: production date, tire specifications. Taking the 185/60r17 89h model tire as an example, the tire parameters represent: 1. 185 indicates the tire width is 185mm; 2. 60 indicates the aspect ratio of the tire section is 60%; 3. r indicates the tire has a radial structure; 4. 17 indicates the rim diameter is 17 inches; 5. 89 indicates the load index; 6. h indicates the speed rating. Car tires are one of the important components of a vehicle, directly contacting the road surface and working with the car suspension to cushion the impact during driving, ensuring good ride comfort and smooth driving performance, maintaining good adhesion between the wheels and the road surface, improving the vehicle's traction, braking, and passing ability, and bearing the weight of the car.
I always pay close attention to my car tires, especially the specifications, as they are crucial for safety and driving experience. The numbers on the tire, like 215/60R16 98H, have specific meanings: 215 is the width in millimeters, indicating how wide the tire's contact surface is, which affects grip; 60 is the aspect ratio, a percentage showing the height relative to the width—higher ratios mean softer tires, better for uneven city roads; R stands for radial construction, known for durability; 16 is the rim diameter in inches, which must match the wheel size for proper fitting; 98 is the load index, meaning each tire can carry about 650 kg to ensure safety by avoiding overload; H is the speed rating, allowing up to 210 km/h, suitable for highways. I’ve also noticed the recommended tire pressure values on the door frame, which affect fuel efficiency and lifespan. I check the tire pressure monthly with a gauge to prevent unexpected blowouts, especially before long trips. I always remind myself to adjust for seasonal changes, like not overinflating tires in summer.
