What Do the Tire Parameters Represent?
2 Answers
The parameters displayed on the tire model represent the tire's width, aspect ratio, tire type, and applicable size. Methods to Differentiate Tires: The tire model can be identified based on the data on the side of the car tire. Generally, the side of the tire will indicate the tire's width, aspect ratio, tire type, and applicable size. When purchasing tires, it is important to observe the data of your own tires before making a purchase. Functions of Car Tires: Car tires are one of the important components of a vehicle, directly in contact with the road surface and working together with the car suspension to mitigate the impact during driving. They ensure good ride comfort and smooth driving, maintain excellent adhesion between the wheels and the road surface, improve the vehicle's traction, braking, and off-road capability, and bear the weight of the car.
You know that string of numbers and letters on the tire sidewall, right? Like 215/55R17 94V. The first number, 215, is the tire width in millimeters. The 55 is the aspect ratio, simply put, it means the tire's height is 55% of its width. The R stands for radial tire, which is pretty much standard these days. 17 is the wheel diameter in inches. Pay attention to the 94V that follows—94 is the load index, roughly 670 kg per tire, and V is the speed rating, indicating a maximum speed of 240 km/h. There's also a small box on the side with a four-digit number, that's the manufacturing date. For example, 2523 means the tire was produced in the 25th week of 2023. When replacing tires, don't just look at the size; the load index and speed rating must also match the original vehicle requirements.
