Rims, commonly known as wheel rims, are components of tyres mounted around the wheel.

The specifications and specifications of rims in China are basically in line with international standards. Its nominal width and nominal diameter are expressed in inches. The middle connecting sign (* or -) indicates whether the overall rim.

For example: "4.50E*16" means a nominal width of 4.5 inches and an integral rim of the wheel code named E.

The 6.5-20 represents a multi piece wide flat rim with a nominal width of 6.5 inches and a nominal diameter of 20 inches.

In use, the rim specifications of the car are important. It determines which tires the car can hold.

Tire / rim tire specifications: international standard code, expressed in millimeters and flat section height ratio percentage, followed by type code: tire, rim diameter (inches), load index (allowable load allowable speed, the quality of code) code. For example: 175/70R 14 77H, 175 represents the tire width is 175MM, and 70 represents the tire cross-section flat ratio is 70%, that is, the cross section height is 70% of the width, the rim diameter is 14 inches, the load index is 77, the allowable speed is H