The Zimmermann Brake Kit - Front/Rear - 138269 is a comprehensive kit of products designed for use on cars. It includes six different components that are essential for maintaining and improving the braking system of a vehicle. These components include brake pads, brake rotors, brake wear sensors, and brake caliper mounting bolts for both the front and rear brakes.

The brake pads are an essential part of the kit, as they are the primary component responsible for slowing down and stopping the vehicle. They are made of a high-friction material that creates the necessary friction against the brake rotors to bring the car to a halt.

The brake rotors, also known as brake discs, are another crucial part of the kit. They are the circular metal discs that the brake pads press against to create the necessary friction. The Zimmermann Brake Kit includes both front and rear rotors, as both sets are necessary for balanced and effective braking.

The brake wear sensors are small electronic components that are attached to the brake pads. They provide a warning signal when the brake pads are worn down and need to be replaced, ensuring the safety of the driver and passengers.

Lastly, the kit includes brake caliper mounting bolts for both the front and rear brakes. These bolts are essential for securely attaching the brake calipers to the vehicle's suspension, ensuring proper functioning of the braking system.

Overall, the Zimmermann Brake Kit - Front/Rear - 138269 is a comprehensive and essential kit for maintaining and improving the braking system of a car. Its various components work together to ensure safe and effective braking, making it a valuable addition to any vehicle maintenance toolkit.