Secus

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 RockShox forks (see Compatibility info).  Also available for Fox & Marzocchi forks.
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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 38 mm stanchioned forks (see Compatibility info).  Also available for RockShox, Fox 32/34/36/40 mm & Marzocchi forks.
Learn More

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 40 mm stanchioned forks (see Compatibility info).  Also available for RockShox, Fox 32/34/36/38 mm & Marzocchi forks.
Learn More

If you have a Debonair C1 air spring for RockShox Lyrik/Pike, a replacement 35 mm Debonair this B1-style sealhead is now available.
The C1 sealhead effectively shortens the air shaft and reduces/eliminates the pneumatic topout control present in the B1/B2 air shaft assemblies.
While the Secus can be physically attached to a C1 Debonair air shaft assembly, it will reduce your travel and may top out noticeably loudly.  We strongly recommend replacing the C1 sealhead with a B1 sealhead. Learn More

Spare foot nut for Vorsprung Secus. Learn More

Secus Fox A2 foot stud to fit a Secus to Fox 38 mm stanchioned forks Learn More

Secus Fox A3 foot stud to fit a Secus to Fox 40 mm stanchioned forks
This kit includes the same foot stud as the one in the Fox A1 kit, but includes a replacement air piston for the Fox 40 Learn More

Secus RockShox A3 foot stud to fit a Secus to Rockshox forks

This supersedes the RockShox A2 foot stud.  The RockShox A3 foot stud fits all the same forks as the A1 & A2 kits, plus more.
The A1, A2 & A3 kits all share the same footstud part, but the A2 kit also includes spacer shims to allow for fitment on forks that the A1 kit did not fit. The A3 kit includes the spacer shims plus an adaptor for Buttercup air shafts.  Note that the Buttercups will be replaced.

The A3 kit includes the spacer shims plus 4x o-rings. Learn More

Available for use with a Vorsprung Secus RockShox A2 kit on newer RockShox forks with Buttercups. Learn More

Air piston removal tool for Fox 40 mm forks
For use in installation of Vorsprung Secus Learn More

Shaft clamp tool for use in installation of Luftkappe & Secus

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