There are two basic types of constructions used for dampers. At Koni we use both high pressure Gas Monotube design (26 & 30 series) and twin tube design which can be oil or oil/gas. All other Koni damper series are this type. To adjust your dampers you will need to know which type they are and for this purpose the series will be stamped on to the body of the damper, you can then select the correct adjustment (instructions below).