What is the diameter of the wheel?
2 Answers
Car tire diameters typically range between 60-80 centimeters. Below is a detailed introduction to the functions of car tires: Cushioning impacts: Car tires are one of the important components of a vehicle, directly in contact with the road surface, working together with the car's suspension to mitigate the impacts experienced during driving. Comfort: Ensuring good ride comfort and smooth driving, maintaining excellent adhesion between the wheels and the road surface, enhancing the vehicle's traction, braking, and off-road capability, and bearing the weight of the car. Below is extended information on tire pressure: Low-pressure tires: Primarily used for private passenger vehicles. High-pressure tires: Mainly used for large freight or passenger vehicles. Tire pressure: For highway driving, the recommended tire pressure is 2.5 kilograms per cubic centimeter.
When I first started driving, I was also quite curious about wheel diameter. Later, I found that it varies significantly between different car models. For ordinary family cars, the tire diameter is usually around 25 inches, while SUVs tend to have larger ones, with many exceeding 30 inches. Actually, the secret lies in that string of numbers on the tire sidewall. For example, in '235/55 R18,' the '18' refers to an 18-inch wheel rim diameter. This size directly affects the car's stability and fuel consumption—larger wheels may look impressive but could increase fuel consumption, while smaller ones are more economical. When changing tires, if the rim size increases, don't forget to adjust the tire pressure and be aware that the speedometer might become inaccurate. Once, I used a spare tire of a different size and almost missed a speed camera on the highway.
