What does 235/60r18 mean on a tire?
2 Answers
Tire 235/60r18: 235 indicates the width of the tire, the aspect ratio is 60, 'r' signifies that this is a radial tire, and 18 denotes the diameter of the wheel rim. The functions of a tire are: 1. To transmit driving force, braking force, and steering force for vehicle operation; 2. To support the vehicle load; 3. To mitigate and absorb vibrations and impact forces during driving, preventing severe vibrations from damaging vehicle components. Methods for tire maintenance include: 1. Regularly removing stones stuck in the tire treads; 2. Minimizing exposure to direct sunlight; 3. Promptly checking tire pressure; 4. Paying attention to suspension maintenance; 5. Periodically inspecting front wheel alignment; 6. Adopting careful driving habits, choosing smooth road surfaces, avoiding objects that could puncture or scratch the tires, and steering clear of chemical spills that may corrode the tires.
I used to drive frequently and am quite familiar with tires. Simply put, the numbers 235/60R18 mean: 235 refers to the tire width of 235 millimeters, which is how wide the tire looks from the side; 60 is the aspect ratio, meaning the tire height is 60% of the width, approximately 140mm tall; R stands for radial construction, the standard design of modern tires; and 18 is the wheel diameter of 18 inches. These dimensions directly affect driving—for example, wider tires can improve grip and make braking more stable but consume more fuel; an aspect ratio of 60 is medium, offering good stability and suitability for city roads. If the wrong size is fitted, the wheel might rub against the body or affect the suspension. I always buy according to the vehicle manual's recommendations to avoid accidents. Choosing tires also involves matching the tire pressure, maintaining around 2.3 bar, to extend lifespan and ensure safe travel. Tires are no small matter—it's best to check them before long trips.
