What does the tire code 205/55/R16 91V mean?

[LaBrody]

205 represents the tire section width, 55 represents the tire aspect ratio, which is the ratio of the tire sidewall height to the tire section width. R stands for radial tire construction, 16 indicates the rim diameter, 91 is the load index with a maximum capacity of 615 kg, and V represents the speed rating with a maximum speed of 240 km/h. Additional information: 1. Types of tires: The international standard tire code expresses the section width and aspect ratio percentage in millimeters. This is followed by: tire type code, rim diameter (in inches), load index (permissible load capacity code), and permissible speed code. 2. For example: In 175/70R-14-77H, 175 indicates the tire width is 175 mm, 70 means the tire's aspect ratio is 70% (i.e., 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.