Vorsprung Secus

The Secus upgrade attaches to your factory air shaft assembly to deliver an air spring system indistinguishably close to the linear spring rate of a coil fork for the entire first 2/3rds of its travel, with the advantage of a gentle end stroke progression to prevent bottoming without the “wall of force” harshness that excessively progressive springs create.

Three Stages of Control:

Initial stroke - enlarged negative air spring chamber delivers a soft, supple initial stroke for ultimate small bump compliance

Mid stroke - where traditional air spring rates drop off in the midstroke, Vorsprung's proprietary Midstroke Support Valve (MSV) technology boosts the midstroke spring rate to maintain linearity, for support, predictability, ride height and compliance

End stroke - enlarged lower leg volume reduces overall progression even at higher pressures and allows for a wider range of end-stroke ramp options to be utilized with standard fork volume spacers.