Disc brake: the disc brake is composed of a brake disc and a brake caliper at the edge of the disc. Advantages: high brake sensitivity, automatic clearance adjustment, long service life of shoe block, low brake effort, high cost, high requirement for hydraulic system, easy maintenance, fast heat dissipation. Disadvantages: improper use, easy to lock, tire skidding, greatly affected by external factors (in snowy days in the north, the snow on the road has melted, but when it is thrown on the car, it will freeze, if it is thrown on the disc brake, the brake will temporarily fail because there is a layer of ice on the disc, the car will not, because its braking torque will melt). When riding, it will make a little noise because it is in close contact Voice.
Drum brake: composition: drum brake is composed of brake cylinder, friction lining, clearance adjusting rod and return spring.
Advantages: little influenced by external factors, not easy to lock up, no unpleasant noise, mute, low cost. Disadvantages: the brake sensitivity is not as good as the disc brake, and the clearance needs to be adjusted manually. The service life of the shoe is low, the brake is laborious, and it is not easy to maintain, the heat dissipation is slow, and the shoe powder is not easy to be removed, which will stay in the drum.