Why are two-wheel electric vehicles mostly front disc brakes and rear drum brakes? You do n’t feel bad after watching it
Disc brakes and drum brakes are not much different in electric vehicles. Disc brakes are strong, and drum brakes are relatively weak. As for what you call the front disc and the rear drum, I personally think this is a way for businesses to improve their product market competitiveness. Why do you say that?
1. The disc brake is much more expensive than the drum brake. Installing a disc brake improves the quality of the product in disguise.
2. As mentioned above, disc kill is more expensive than drum brake. If it is a front and rear dual disc brake, the cost of the vehicle will be much higher, and the purchasing power of ordinary consumers will decline.
The advantage of disc brakes is that the sensitivity is relatively high, and the car can be braked instantly. The disadvantage is that due to the high sensitivity, there is a scientific basis for the design of the rear drum in an instant. The drum brake is slightly softer than the disc brake. The brake can be killed without the disc brake in an instant. It feels a bit too sensitive. In the situation where some people were killed instantly, they fell without holding the car and even the car. Sometimes they also bumped into the car's outer shell, and sometimes even bumped into the car, sometimes Causes the car and people to fall out, causing a certain amount of injury and damage to the cyclist and the vehicle; it may also cause a certain amount of damage to the people and the vehicle riding next to it; such incidents often cause personal injuries.
In recent years, electric vehicles have been continuously improving their overall quality requirements. At the same time, due to the promulgation of the new national standard, electric vehicles have been subdivided into: electric bicycles, light electric motorcycles, and electric motorcycles. Then for the latter two models, the front and rear disc brakes will be gradually used in the future, because the speed of the light electric motorcycle is nearly 50km / h, and the braking effect of the front and rear disc brakes is better than that of the front disc and rear drum during emergency braking. Enough ".
The rear brake is the most commonly used when we ride trams. The rear brake consumes a lot, and the drum brake is easy to replace and cheap. As for the front butterfly, braking can be better performed in emergency situations, thereby reducing the danger. Finally, I would like to tell you a few points to pay attention to. Drum brakes must be inspected frequently and replaced in time to prevent danger during riding. After using the disc brake for a long time, add brake fluid.