Abstract: A suspension system for a motorcycle's rear wheel of the type in which that rear wheel is rotationally carried between two swing arms at one end of the swing arms, the moving arms being positioned on opposite sides of the rear wheel and being immobile relative to one another. The other end of the swing arms is pivotally mounted on a common axis to the motorcycle's main frame. Thus, the motorcycle's rear wheel is suspended from the main frame by the swing arms and the shock absorber. The unique feature of this invention is that the common pivot axis of the swing arms is located so as to pass through the tangent point of the tension run of the rear wheel's drive chain with that chain's power transfer sprocket when that chain is viewed from a line of sight perpendicular to the plane of that chain.