1. Heat dissipation requirements: If the car runs for a long time, it will make the car wheel very hot. What’s more, the braking system will also generate a lot of heat. If this heat is not released in time, it will bring a big problem to the driving safety of the car and may cause the tire to burst. The hollow design can increase the contact area between therim spokes and the air, which is conducive to heat dissipation.

2. Reduce the weight of the car rim: As we all know, the lighter the mass under the spring, the better the car performance, the higher the acceleration and braking, and the higher the fuel efficiency. The hollow design greatly reduces the weight of the rim, and the aluminum alloy also provides enough strength for the spokes to support the rim.

3. Material saving: The hollow design saves the aluminum alloy material used in the manufacture of the wheel rim, reduces the production cost of the automobile wheel rim manufacturer, and also reduces the purchase price of the consumer.

4. More beautiful: At present, car manufacturers are paying more and more attention to the design of the wheel rim. A good car wheel design can improve the integrity of the car's design and play a finishing touch. Hollowed spokes can be made in various shapes to meet the needs of different consumers.