What should I pay attention to before replacing the wheel hub?

For example, my own car, the original car was an ugly steel hub, so I changed the hub. First of all, we need to know some data about the wheel hub. The first data is this diameter, which is what we usually call-inch. The second data is the J value of the hub, which is also the width of the cross section of our hub. The third is the ET value of the hub.

Then let's pay attention to the value of et. This concept is not easy to understand, that is, the distance between the hub screw installation ground and the hub width centerline is positive or negative. If the mounting surface of the screw is exactly in the center of the hub width, the value of ET is zero. The mounting surface is on the outside, so ET is positive. On the inside, the ET value is negative. In the case of positive values, the larger the ET value, the flatter our center looks, and the smaller the ET value, the more concave our center looks. Another data is the number of holes and the spacing of holes. No matter what kind of wheel hub you change, the hole spacing must be the same as the original car, otherwise the wheel hub you change will not fit.

What should I pay attention to when replacing the wheel hub?

Tell you one thing to pay attention to when changing the wheel hub. We should not blindly pursue large-size wheels. The most economical situation is the original car 15 inch wheel hub, and the original tires can be used. If you change the hub of a big car, you can't use this tire first, and the wheel arch of our car is so big that the outer diameter of our tire can't be changed.

Besides, if your tires get bigger, your speedometer will be inaccurate. Therefore, the bigger your hub is, the thinner your tire will be when the outer diameter of your tire remains unchanged. When the tire becomes thinner, it will affect our driving comfort and its buffer will become smaller. The larger the hub is, the greater its J value will be. The greater the J value, the wider the tire you change, and the wider the tire will be, which will affect us.

Also, don't choose some fake wheels for the sake of cheap, because you don't know what kind of materials and technology it is made of. If the wheel breaks down during driving, you will regret saving the money. The manufacturing process of wheel hub is different, which is divided into casting, spinning and forging. The better the process, the lighter it will be under the same size. The lighter the hub, the better the acceleration performance of our car, and of course its price will be higher.

Of course, the current laws and regulations may have many restrictions on replacing the wheel hub. For example, the diameter and width of the hub cannot be changed. If these parameters of the hub are changed privately, it will not pass the annual inspection. But now our laws and regulations are gradually relaxing the policy on modified cars. If you are interested in this area, you can pay more attention to the latest policies in this area.