The alphanumeric code found on a tire sidewall provides crucial information about its size, construction, and performance capabilities. This sequence of letters and numbers, often overlooked, is essential for selecting the correct replacement tires and understanding the operational limits of the vehicle. For instance, a code like “P215/65R16 98H” reveals the tire type, width, aspect ratio, construction type, wheel diameter, load index, and speed rating.
Understanding these markings is vital for safety and optimal vehicle performance. Matching the original tire specifications ensures proper handling, braking, and load-carrying capacity. Furthermore, adhering to the specified speed rating helps prevent tire failure at high speeds. The standardization of these codes allows for a universal understanding of tire characteristics across different manufacturers and models, fostering informed decision-making by vehicle owners and service professionals alike. Historically, the evolution of these codes reflects advancements in tire technology and a growing emphasis on vehicle safety standards.