Yellow Six Pots Brake Caliper AP9040 For 355*32 362*32mm Brake Disc Rotor

1. The maximum braking force of the brake caliper and the front and rear distribution ratio of the braking force. The maximum braking force means how much braking force can be obtained by the front and rear wheels when the brake pedal is fully pressed, which is the main factor determining the braking effect. There is also the problem of the distribution proportion of the braking force between the front and rear wheels. After some exchanges, I found that most riders believe that the distribution of the braking force between the front and rear brakes is 50:50. In fact, this is completely wrong. Generally, after the pressure distribution through the master cylinder, the distribution of the braking force between the front and rear brakes is 80:20 or more inclined to the front wheels. Therefore, this is why in most cases, The modified brake calipers are aimed at the front wheels. There are many upgrades, but there are few rear wheels. Due to space constraints, there are not many in-depth discussions. As long as you know that the front wheel is the main source of braking force, unless the vehicle has special use needs, such as drift or more telling cornering, I personally don't think it is necessary to upgrade the brake calipers of the rear wheel. Moreover, most of the rear wheels of vehicles are accompanied by electronic handbrakes. For the upgrade of the brake calipers of the rear wheels, it is still mostly double calipers, which is very cost-effective, Moreover, the increase of excess unsprung mass actually has a great impact on the performance of the vehicle. Of course, there are also cases of replacing the rear wheel four piston caliper with integrated electronic handbrake system, but the cost is too high, and in fact, the improvement of the overall braking performance is very little.

2. How to choose the brake calipers of street version and competitive version? Let's briefly talk about the differences between the two versions. In fact, generally speaking, there is little difference in terms of data and performance. However, considering the actual daily car use scene of individuals, there is a difference. Street brake calipers, in short, when the actual braking force is good, the manufacturer will consider a variety of comfort factors such as daily brake foot feel, linearity, dust, noise and so on. On the contrary, the competitive version basically ignores the comfort considerations mentioned above, focusing on the performance of the brake, shortening the pedal stroke, and the original intention of the design is to directly brake to the end. The second thing to consider is the brake pads and discs used with calipers

In addition, it is necessary to reasonably consider and plan, how big the wheel hub of your car is, and whether the ET value meets the space for refitting large calipers, which are all very important theoretical parameters. The 330mm brake disc is placed on the 17 inch wheel hub, and the four piston caliper is basically no problem. If you have to install a large six piston caliper, you should consider or even test whether it meets the space for installing a large six piston caliper. If you put it in reluctantly, the space in the wheel hub will be too full, which may also have an adverse impact on the heat dissipation of the brake system.

In addition, comprehensive consideration of the vehicle's weight and power output data is also a very important consideration for the upgrading of the braking system. In my personal opinion, for cars with body weight less than 1.5T and horsepower less than 250p, four piston or large four piston calipers, combined with a 330-350mm brake disc, the data performance of brake braking force is enough to meet the needs of daily and simple competitive driving. If the body weight is more than 2 tons and the horsepower is more than 300p or even more, consider the six piston or large six piston caliper with 380-400mm brake disc, which has far exceeded the demand for braking force for normal driving