Originally Posted by DirtyD
Are those the bilstien pro series or something like that in which there is a self valving disk of some sort inside that controls the rebound and dampening pretty much by itself?
|
No, you might be thinking of the Koni FSD, another crutch for a twin tube to make them work on the street while providing some performance.
The large body Bilsteins are a simple damper. There are no gimmicks. Their performance comes from having a large diameter piston. By using a large piston there is a large amount of flow through the piston at very low suspension speeds. That large amount of flow allows a normal shim stack (valving) to have both a finer and greater effect on the damping force. We can build a great digressive curve that builds force very quickly with a very flat blowoff past the knee by using a large piston. When using a small piston, like most twin tubes, we can either build force quickly, or blow it off cleanly, but not both.
This simple construction also contributes to the longevity of the damper. Fewer moving parts that have to be built to extreme tolerances, and more robust seals will help any damper last longer.