The clutch pressure plate is a metal disc. The normal state is that it is closely combined with the clutch plate to form a whole, which rotates with the engine and transmits power to the gearbox. When the clutch pedal is stepped on, the pressure plate is separated from the clutch plate, cutting off the power output of the engine, and you can shift gears. Raise the clutch pedal, the pressure plate is combined with the clutch plate again to transmit power. The role of the clutch pressure plate is to press the clutch driven plate to the flywheel with sufficient force, thereby effectively transmitting the engine torque, and the driven plate stops rotating when it is disconnected from the clutch.