What does 215/55r1794v mean?

[GarrettDella]

215 represents the tire width of 215 millimeters, 55 is the aspect ratio of 55%, R stands for radial tubeless tire, 17 is the rim diameter, and 94v corresponds to a load capacity of 670kg and a maximum speed of 240Km/h. Below are relevant introductions about tires: 1. Tire representation: Tire specifications are commonly represented by a set of numbers. The first number indicates the tire section width, and the latter indicates the rim diameter, in inches. For example, 165/70R14 means a tire width of 165 millimeters, an aspect ratio of 70, and a rim diameter of 14 inches. 2. Symbol meanings: The letters or symbols in the middle have special meanings: "X" indicates a high-pressure tire; "R" and "Z" indicate radial tires; "—" indicates bias-ply tires. For example, 6.00—12, a bias-ply tire, is only used in some low-end off-road vehicles and heavy-duty trucks due to its poor safety, load capacity, and high-speed stability.