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The width of the hub is also commonly known as the J value. The width of the hub directly affects the choice of tires. For tires of the same size, the J value is different, and the selected tire aspect ratio and width are also different:
1. PCD and hole position: The professional name of PCD is called the diameter of the section garden, which refers to the diameter between the fixing bolts in the center of the hub;
2. Generally, there are 5 bolts and 4 bolts in the large holes of the wheel hub, and the distance of the bolts is also different, so we often hear the names of 4X103, 5X114.3, 5X112, and 5X114.3 is the name. For example, it means that the PCD of this hub is 114.3mm, and there are 5 bolts in the hole;
3. When choosing a wheel hub, PCD is one of the most important parameters. For the sake of safety and stability, it is best to choose a wheel hub with PCD consistent with the original car for upgrading.
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