Originally Posted by
Vetruck
Good morning guys. John, The shocks you have are the 26 series Koni's(the less expensive but better performin and lighter unsprung weight "monotubes"). Koni also makes a twintube sesign which is the 80411 part numbes. Te twintube is the shock with th upper dial knob rather than the removal and depress button mechanism, but as stated, they are more expensive, heavier, and overall a slightly inferior performance design. Knoi makes that series simply for the person that wants ease of adjustment.
I have the Monotubes coming-Just like what you have. The twintubes are more suited for the weekend lazy person that wants to autox his car, but then drive it to work all week so the dial is good for the average joe that does not want top perfromance and mainly does not want to get his hands dirty. The monotube will givve you better valving performance since it is a high pressure single large valve disc design. The Koni twintube is unique over other brands conventional twintube styles as that Koni uses separate valve disks (yes two separate places- one for rebound, and one for compression0 where everyone else uses on small one that tried to handle both vavle passages. The twin tube desgin has an internal tube that is very small in diameter so you can not have adequate vlave ports for both on that small disk- but other brands do it anyways. This causes alot of pressure on the fuild so it heats up more and foams very easy. What Koni did is made the shaft disk the rebound disk(with a vertical inner adjustment rod to the top of the shaft- hence the white dial), and then they put the other compression valve disk at the base of the shock where the shock oil exits the inner tube and enters the outer tube. This design is heavier because of two tubes and two disks and the thicker innerrod and outer shaft, It also only allows for a low pressure nitrogen charge so it does foam still on very agressive raod course use.
The monotube has a large open oil capacity and a very large single "dual porting" disc that is adjusted by turning depressing the button and turning the shaft which spins the disc internal more open or closed on the rebound passages. Its a a better design that allows the use of an absorbtion HP nitrogen porton inside the bottom of the oil chamber to keep the oil under pressure so as not the foam- the HP nitrogen also acts as a damper internally to help take away fast movement harshness- in a sense it acts like the more asdvance 4-way shocks a little bit (but just a little- this is more advanced to explain and not viable for us so I will spare the details)
You have the better Koni shock on there, the 26 series