Multi-link Suspension - Side View

Side View

Independent Suspension

The arms have to react traction and braking loads, usually accomplished via a longitudinal link. They also have to control caster. Note that brake torques also have to be reacted - either by a second longitudinal link, or by rotating the hub, which forces the lateral arms out of plane, so allowing them to react 'spin' forces, or by rigidly fixing the longitudinal link to the hub.

Solid Axle Suspension

For a solid axle the lower arms control forward and backward motion, the upper arms control forward and backward rotation. This rotation is present under acceleration and braking.

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