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Rear brakes are a critical component of a vehicle's braking system, located at the rear wheels. They work in conjunction with front brakes to slow down or stop the vehicle. Most modern vehicles utilize either drum brakes or disc brakes at the rear, with disc brakes becoming increasingly common due to their superior heat dissipation and performance.

In many vehicles, the rear brakes handle approximately 30-40% of the total braking force, though this can vary depending on the vehicle's design and weight distribution. Some vehicles employ electronic brakeforce distribution systems to optimize the braking force between front and rear axles based on driving conditions and load.

Parking brakes, also known as emergency brakes, are typically integrated with the rear brake system. In vehicles with drum brakes, the parking brake usually operates mechanical shoes inside the drum, while disc brake systems may use a separate mechanism that clamps the brake caliper or acts on the inside of the rotor.

Regular maintenance of rear brakes is essential for safe operation and includes checking brake pad/shoe thickness, inspecting rotors/drums for wear, and ensuring proper lubrication of components. Worn rear brakes can lead to reduced stopping power and increased stopping distances.