The following is a detailed introduction to checking tire model numbers: The tire model number is marked on the sidewall of the tire. Tire specifications are commonly represented by a set of numbers, where the first number indicates the tire section width, and the latter denotes the rim diameter in inches. For example, 165/70R14 represents a radial tire with a section width of 165 millimeters, an aspect ratio of 70, and a rim diameter of 14 inches. Additional information: 1. Tread width. Tire width is one of the factors affecting the vehicle's fuel consumption. The wider the tread, the larger the contact area with the ground, and consequently, the greater the friction between the tire and the ground. When traveling the same distance, wider tires tend to consume more fuel. However, wider tires also provide better grip, handling, and resistance to lateral forces. Conversely, narrower tires have lower fuel consumption and a lighter driving feel, but due to their smaller contact area with the ground, their grip is not as strong. 2. Aspect ratio. The aspect ratio refers to the ratio of the height from the rim to the tread and the maximum section width of the tire, i.e., the height-to-width ratio of the tire. Most cars on the market today use tires with small widths, small inner diameters, and high aspect ratios. Tires with high aspect ratios have longer sidewalls, which generally offer better comfort. 3. Rim size. The rim, commonly known as the wheel, forms the wheel together with the spokes. Rims and spokes can be divided into three types: one-piece, permanently connected, or detachable. In China, the nominal width and nominal diameter of rims are expressed in inches.
