The tire specification of the BYD Song is 225/65R17. The first number, 225, represents the tire width of 225 mm. The number 65 indicates that the aspect ratio of the tire section is 65%, meaning the section height is 65% of the width. The number 17 represents the rim diameter of 17 inches, and the letter "R" in the middle stands for radial tire. The BYD Song uses Linglong brand tires with the tread pattern CROSSWIND4*4HP, and the spare tire is non-full size. If you want to replace the tire yourself, you can follow these steps: Take out the spare tire and jack, place the jack under the frame of the tire to be replaced, and ensure the jack touches the metal part of the frame. Raise the jack until it supports the car. The jack should be positioned under the vehicle, and ensure it is perpendicular to the ground. Remove the hubcap and loosen the nuts counterclockwise. Do not completely loosen the nuts; just enough to eliminate resistance. When loosening the nuts for the first time, keeping the tire on the ground ensures that the nuts turn rather than the tire. Turn the nuts counterclockwise until they are loose. Repeat this step for all lug nuts and remove them completely. Place the new tire on the wheel hub, carefully aligning the tire rim with the wheel bolts. Install the lug nuts and tighten them by hand until all nuts are concealed. At this point, the tire replacement is complete. In addition to the model, the tire also carries the following common data: Tire cord material: Indicated by Chinese Pinyin, such as M for cotton cord, R for rayon cord, N for nylon cord, G for steel cord, and ZG for steel radial cord tire. Speed rating: Indicates the maximum speed at which the tire can carry a specified load under specified conditions. Letters from A to Z represent certified speed ratings from 4.8 km/h to 300 km/h. Common speed ratings include: Q: 160 km/h; H: 210 km/h; V: 240 km/h; W: 270 km/h; Y: 300 km/h. Rim specification: Indicates the rim specification compatible with the tire for practical use, such as standard rim 5.00F.
