Are 400 Tires and 450 Tires the Same Height?

[Furtado]

Whether 400 tires and 450 tires are the same height depends on the aspect ratio and rim size. Here, 400 and 450 represent the tire's section widths of 400mm and 450mm respectively. The tire diameter is calculated as: Tire Width × Aspect Ratio × 2 + 25.4 × Wheel Diameter. Below is extended information about automotive tire specifications: Specification Representation: Tires are crucial components of vehicles, and they come in various specifications suitable for different vehicle types. The specification markings are usually found on the tire sidewall as a series of alphanumeric characters, indicating the tire's tread width, aspect ratio, type, rim size, load index, and speed rating. Speed Rating: Based on the maximum speed they can sustain, tires are classified into different speed ratings from A to Z, with Grade A further divided into eight subcategories (A1-A8). Generally, the later the letter in the alphabet for the speed rating, the better the tire's performance.