The two most common types of braking systems are drum brakes and disc brakes.
Brake drum (Drum Brake) – cylindrical shape, through hydraulic push or steel cable push, long-term braking can easily lead to brake overheating failure, the opposite piston used in high-performance cars. The powerful brake drum parts are covered in the drum disc to protect the internal parts. The drum brake disc and parts have a long service life. Only when the friction surface becomes thin or the friction surface is scratched, it needs to be replaced.