The view of the tricycle tire model is actually relatively simple. The tire model is generally written on the side of the tire. For example, 180/50 ZR 16 is used as an example. 180 refers to the cross-sectional area of the tire is 180 mm, and 50 refers to the aspect ratio of the tire. It is 50, R refers to the radial structure, 16 refers to the diameter of the wheel is 16 inches.
In addition, some tricycle tires use imperial nomenclature, such as 4.00 H 18 4PR, 4.00 represents a tire width of 4 inches, an aspect ratio of 1, H represents a speed rating, and 4PR represents a four-ply carcass structure ply.