For the first time, Vorsprung has created an air spring with a truly better spring rate, everywhere in the travel, than a coil. The Secus upgrade delivers the first and only single crown air spring system to really come 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.
This version of the Secus fits Fox 32, 34 & 36 mm stanchioned forks & Marzocchi Z1 2019+ forks (see Compatibility info). Also available for RockShox & Fox 38/40 mm forks. Learn More