Originally Posted by rekmeyata

Drum brakes worked just as well as disk did on the initial braking action, they stopped the cars, in a panic they would lock up the tires, and it was the tires adhesion to the pavement that stopped the car, not that they were drums or disks. The major issue with drum brakes was overheating and they would fade with repeated braking, the disk can do to. Brake Pad Fade (Mechanical Fade):

• Occurs with disc brakes.
• When a brake pad operates beyond its designed maximum temperature range, its friction material (brake lining) starts to degrade.
• Dynamic Brake Fade:
  • Can happen with both disc brakes and drum brakes.
  • In disc brakes, dynamic fade often results from using low-quality or unsuitable brake pads. It can also occur due to brake caliper lag (where the caliper remains stuck to the rotor even after releasing the brake pedal).
  • In drum brakes, dynamic fade occurs when the brake material or friction surface of the brake shoe vaporizes at elevated temperatures.
• Brake Fluid Fade:
  • Brake fluid can also experience fade due to excessive heat.
  • When brake fluid overheats, it can form air bubbles, leading to a spongy brake pedal feel and reduced braking performance.