The main aim of the SSL front kit is providing an adjutment of the suspension in order to avoid a compressed rebound spring at static height.
The standard configuration provides a great stiffness in the first travel step of compression due to the compressed rebound spring (adding the stiffnesses of the main spring and the rebound spring) when you need a small stiffness to absorb small bump and in a second travel step of compression the rebound spring is released providing a smaller stiffness for big bump when you need the opposite. The standard configuration works in an opposite way of a "normal designed" suspension.
Externaly the SSL front kit provides the same configuration with 2 springs but works in a normal way: soft of small bumps and increasing stiffness for great suspension travel. Externaly, if you look at wheel level you don't see any difference: there is two springs. Only at the top there is an adjustment device and inside a small spring (replacing the standard rubber silent block) providing an additionnal progressive stiffness at the end of the compression travel. The SSL front kit allows a normal work.
Having the SSL front kit, the front suspension of my 2005 PLUS 4 is more confortable and this is the best improvement I made.
Last edited by CBY; 02/05/21 04:26 PM.