Main parts of the rear brake 

1. Brake fluid: The fluid that transfers pressure from the brake pedal to the brake cylinders.

 2. Piston: The part that moves the brake lining when the brake pedal is pressed. 

3. Brake lining: The part that presses the brake disc to create friction and stop.

 4. Brake cylinder: The part that contains the piston and brake lining. 

5. Brake disc: The part that the brake lining presses to create the force needed to stop.

 6. Return spring: Which works to return the brake lining to its original position after releasing the brake pedal