What is the tire model of the BMW 325Li?

[VonJace]

BMW 325Li uses Michelin tires with a size of 225/45R18. How to check the tire model: The tire model can generally be found on the sidewall of the tire. For example, 225/50R1798H, where 225 represents the tread width in millimeters; 50 is the aspect ratio, indicating 50%, with most household car tires having an aspect ratio between 30% and 80%. Normally, ordinary sedans should not use tires with an aspect ratio >75%, while luxury cars and high-performance sports cars are recommended to use tires with an aspect ratio <60%. Tire classification: Tires are classified by usage, including load-bearing tires, passenger car tires, and mining tires, among others. Load-bearing tires must indicate the ply rating on the sidewall in addition to the size specifications. However, it should be noted that the ply rating of load-bearing tires does not refer to the actual number of layers but rather to the load performance of the tire body made with high-strength material cords, which is equivalent to the number of layers of a tire body made with cotton cords.