Single Pivot

Single Pivot Linkage

Overview

This is the simplest suspension design. Here the rear axle is connected to the main frame by a swing arm, with no pivots in-between. The axle moves in a constant arc, centred on the pivot point.

In the case of a true single-pivot, the shock is connected directly to the swingarm — a design made famous by Orange Bikes. The simplicity of the design makes for easier maintenance of the pivot bearings.

One possible shortcoming of this design is that it offers little control over the leverage curve. True single pivot bikes are generally pretty linear — the force required to move the rear wheel through its travel does not “ramp up” towards the end (to resist bottom out) as it does with a more progressive design.