GB/T 4502 - 2023 is a standard for indoor testing of car tire performance. It stipulates the selection and preparation specifications of car tire samples to ensure that they are representative. Detailed description of the accuracy and parameter requirements of test equipment, such as drum testing machine. Rigorously expounds the test process of high speed, durability, strength and other performance, including test environment Humidity, loading mode, test time, etc. According to this standard, it can accurately determine the performance of car tires, provide reliable data for tire mass evaluation, Product Research & Development, ensure car driving safety, and help the tire industry optimize and upgrade products.