What is an anti-roll bar?

An anti-roll bar, also called a stabilizer bar or sway bar, is a part of a vehicle's suspension system that helps reduce the amount of body roll when the vehicle is cornering. It consists of a metal bar that connects the left and right wheels of a vehicle, and it is typically mounted to the chassis or subframe. When the vehicle is subjected to lateral forces, such as during cornering, the anti-roll bar helps to transfer weight from one side of the vehicle to the other, reducing body roll and improving handling.