Vorsprung Secus Fork Air Spring Upgrade Kit - Rockshox A2 PLP|EMTB Optimised It will smoothly shift on

It will smoothly shift on command

6mm and 30

These will work in all Shimano external or press fit style bottom brackets

similar to a cars brake lights

Vorsprung Secus Fork Air Spring Upgrade Kit - Rockshox A2 PLP|EMTB Optimised It will smoothly shift onFor the first time, we 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 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