What does 18×8.5j mean for wheel rims?

[Reginald]

Wheel rim 18×8.5j means the number 18 refers to the diameter of the wheel rim, measured in inches; the number 8.5 refers to the cross-section width of the wheel rim, also measured in inches. Below is relevant information about car wheel rims: 1. Classification: Wheel rims are also called wheel hubs. Depending on the characteristics and requirements of different vehicle models, the surface treatment processes for wheel rims will vary, generally divided into two types: painting and electroplating. 2. Size: Generally, in passenger cars, larger wheel rim sizes and higher tire aspect ratios can create a visually appealing tension effect and improve the stability of vehicle handling. However, this comes with the additional issue of increased fuel consumption. 3. Width: The width of the wheel rim is commonly referred to as the J value. The width of the wheel rim directly affects tire selection. For tires of the same size, different J values will result in different choices for tire aspect ratios and widths.