What Are the Different Specifications of Car Tires?

1 Answers
PaisleyAnn
07/30/25 9:44am
Tire types include: the section width and aspect ratio percentage expressed in millimeters, followed by the tire type code, rim diameter load index, and permissible speed code. For example: in 175/70R1477H, 175 represents a tire width of 175MM, 70 indicates the tire's section aspect ratio is 70%, meaning the section height is 70% of the width, the rim diameter is 14 inches, the load index is 77, and the speed rating is H. Additional information: 1. Tires: These are circular elastic rubber products mounted on various vehicles or machinery for ground rolling. Typically installed on metal rims, they support the vehicle body, cushion external impacts, ensure contact with the road surface, and maintain the vehicle's driving performance. 2. Tires are often used under complex and demanding conditions, enduring various deformations, loads, forces, and high and low temperatures during operation. Therefore, they must possess high load-bearing, traction, and cushioning performance. Additionally, they require high wear resistance and flex resistance, along with low rolling resistance and heat generation. Half of the world's rubber consumption is used for tire production, highlighting the significant rubber demand for tires.
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