What is the difference between a single air chamber and a double air chamber?

In the production process of automobiles, the actual production is very common. In order to achieve a certain use value, the vehicles in traditional use are equipped with a single-layer brake chamber. Then the double-layer brake is now developed. What's the difference actually?
The first is that the structure is different. The difference between the brake chamber produced and the single-layer brake chamber is that the single-layer brake chamber is composed of one brake chamber, while the double-layer brake chamber It is double-layered, which can satisfy our form and make our form more powerful when braking.
Then, after continuous efforts and graduate students, the double air chamber is to replace the negative pressure spring with a negative air chamber. Using this new product can further adjust the air pressure of the negative air chamber and the positive air chamber to adjust the softness and hardness of the front fork. With certain controllability, it will be more convenient to use.