Multi-link Suspension

A 5 link suspension setup also known as multi-link suspension uses multiple linkages to control forces from different angles reacting on wheels. It is a setup for the rear suspension of cars (i.e. the wheels not connected to the steering). These linkages deal with side to side, up and down, and in and out forces acting on the cars wheels. 

The benefit of 5-link suspension is that it offers a good blend of handling and ride comfort. The suspension can absorb bumps more easily due to its ability to absorb bumps from different directions and also deal with high speed manoeuvres. 5-link suspension is also good for off-road vehicles due to its ability to cope with forces acting from different angles on the wheel. 

The four links that connect from suspension to body are independent from the others. As a result while going over a bump with one wheel, the wheel which is going over the bump deals with the vertical movement while the other wheel is completely unaffected. Also, it allows the axle to move and rotate freely without having to cope with the suspension movements from the wheels.

The fifth link which connects the axle to the body of the car prevents the axle from sliding horizontally. While cornering at high speeds it prevents the axle from swaying from side to side thereby upsetting the weight distribution of the car.