Editing Multi-link suspension (section)

==Layout==
In order to simplify understanding, it is usual to consider the function of the arms in each of three orthogonal planes:

*Top view:
The arms have to control [[Toe (automotive)|toe]]/steer and lateral compliance. This needs a pair of arms longitudinally separated.

*Front view:
The arms have to control [[Camber angle|camber]], particularly the way that the camber changes as the wheel moves up (into jounce, or bump) and down into rebound or droop.

*Side view:
The arms have to transmit traction and braking loads, usually accomplished via a longitudinal link. They also have to control [[caster angle|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.