The inability of drums to dissipate as much heat as disc brakes is one of the main reasons discs have replaced drums at the front of all late model cars and light trucks

Question

Quizplus · Accepted Answer

Disc brakes dissipate heat more effectively than drum brakes due to their open design, which allows air to flow over and cool the brakes, leading to their widespread adoption in front braking systems for better performance and safety.

The Inability of Drums to Dissipate as Much Heat as Disc