The primary benefit of a multi-piece wheel is that it allows for more customisation options, as the various parts can be made in different sizes and styles. Additionally, the three pieces can be made from different materials, which can affect the weight and strength of the wheel. 3 piece wheels typically include a centre disk, outer rim and inner barrel and the centre disk and inner barrel can be made from lighter materials, such as aluminium, which can help to reduce the weight of the wheel and improve performance.

Multi-piece wheels have a long history in motorsports and high-performance vehicles. They were first developed for use in racing cars in the 1960's and 1970's, as a way to reduce weight and improve performance. Since then, they have become increasingly popular in high-performance street cars and luxury vehicles. They are usually more expensive than one piece cast or forged wheels, since they are more complex to manufacture.

Forged wheels are a popular choice for high-performance and luxury vehicles because they offer a combination of strength, light weight, and durability. They are made by heating a piece of aluminum alloy to a high temperature and then shaping it into a wheel using a process called forging. This process compresses the aluminum, which makes it stronger and more durable than a regular cast wheel.

The manufacturing process of forged wheels involves several steps:

  1. The first step is to create a billet, which is a solid piece of aluminium alloy.
  2. The billet is then heated to a high temperature, typically around 700-800 degrees Fahrenheit.
  3. The heated billet is placed into a forging press, where a mould in the shape of the desired wheel is used to shape the billet.
  4. This process is called "closed-die forging" because the billet is pressed into the mould with the help of a press.
  5. This creates a "preform" or "blank" that is close to the final shape of the wheel.
  6. From this point, there's a machining step to clean up, cut lug holes and make the hub etc.
  7. Finally, the wheel goes through a finishing process, which can include polishing, painting, or powder coating.

This type of manufacturing process produces wheels that are stronger and more durable than cast wheels, because of the compression and the material properties of the alloy itself, also they tend to be more expensive than a cast wheel due to the cost of the process itself.