What is the tire model of the Cadillac XTS?
2 Answers
There are two types of tires for the Cadillac XTS: 235/50R18 and 245/45R19. The first number, 235, indicates that the tire width is 235mm. The number 50 represents the aspect ratio of the tire, which is 50%, meaning the sidewall height is 50% of the tire width. The letter R stands for radial tire, and 18 indicates the rim diameter is 18 inches. The Cadillac XTS can reach a top speed of 218 km/h, accelerates from 0 to 100 km/h in 8.1 seconds, and has a fuel consumption of 7.9L per 100 km. In addition to the model, tires also display 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 tires. Speed rating: Indicates the maximum speed at which the tire can carry a specified load under defined conditions. Letters from A to Z represent certified speed ratings ranging 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 size compatible with the tire for practical use, such as standard rim 5.00F.
My Cadillac XTS came with factory-standard 245/45 R19 Michelin tires, with the model number clearly engraved on the tire sidewall for easy identification. The base model my friend purchased uses 235/50 R18 Goodyear tires instead, so remember to check the specifications sheet when choosing a car. This number combination actually carries important meanings: 245 indicates the tire's tread width in millimeters; 45 represents the aspect ratio (sidewall height as percentage of width); R19 denotes 19-inch rims. Changing tire sizes during replacement may affect speedometer accuracy and requires recalibration of the TPMS (Tire Pressure Monitoring System). Also, pay attention to the heat dissipation performance of these low-profile tires during summer road trips, and avoid over-inflating them.
