A car can only replace the wheel hub, but the data of wheel hub replacement must be the same as that before the car replacement. As far as the safety and performance of the car are concerned, the wheel hub of the car cannot be replaced at will. Although the structure seems simple, when the tire size changes, many values on the car will change. Related introduction: 1. Hub: it is a kind of automobile metal part, which is used to support the inner contour of tire. The center of the tire is also called rim, steel ring, wheel and tire hub. According to the diameter, width, molding methods and materials, there are many kinds. 2. Classification: Wheels on the market can be divided into steel wheels and alloy wheels according to materials, both of which have their own advantages and disadvantages.