These specifications describe a particular size of tire commonly used on commercial trucks and trailers. The numbers represent specific dimensions: 285 millimeters refers to the tire’s width, 75 indicates the aspect ratio (the height of the sidewall as a percentage of the width), R signifies radial construction, and 24.5 inches denotes the wheel diameter. This combination suggests a tire designed for heavy loads and highway driving.
Correct tire selection is crucial for vehicle performance, safety, and fuel efficiency. Choosing appropriately sized tires ensures optimal load-bearing capacity, handling characteristics, and braking performance. Historically, tire technology has evolved significantly, leading to improvements in durability, traction, and rolling resistance. Selecting tires tailored to specific applications, such as long-haul trucking or regional delivery, contributes to operational cost savings and improved safety outcomes.