An anti-roll bar, also known as a sway bar, is a component in a vehicle's suspension system designed to reduce body roll during cornering. It connects the left and right wheels, helping to distribute weight evenly and maintain stability. This improves handling and allows for a smoother ride, especially in turns. When a vehicle turns, the anti-roll bar resists the lateral forces that cause the body to lean. By doing so, it enhances traction and control, making it an essential feature in performance cars and off-road vehicles. Properly functioning anti-roll bars contribute to overall safety and driving comfort.