Why do brakes react slowly? There are probably the following aspects:

(1) The pedal is too far to travel freely.

(2) The brake fluid in the brake master cylinder is too low, or the hole is blocked by impurities, causing the master cylinder parts to age, swell, or even deform or be knocked over.

(3) The brake master cylinder parts are severely worn, causing looseness and oil leakage. The return valve is not properly sealed, and the tension spring of the outlet valve is broken.

(4) The parts of the brake wheel cylinder are aging and expanding, the piston is blocked, and the live parts of the wheel cylinder are severely worn, resulting in loose connections and oil leakage.

(5) The brake shoes are severely worn, and the brake clearance is relatively large or not properly installed.

(6) The brake drum is not round, causing grooves or wear, oil stains on the outside of the brake shoes, burning and becoming very hard, and obvious rivets.

(7) There is oxygen entering the braking system, or the temperature inside the braking system is too high, causing the brake fluid in the pipeline to vaporize, resulting in air resistance.

(8) The oil pipe is not round, the connection is not too tight, there is oil leakage, the hose is aged, broken, or blocked by impurities.