Most race Shocks absorbers can be revalved to change the way they control a vehicles movement.
The big trick is knowing what to change and how much to change it, and then being able to test the changes made before putting the Shock back in the vehicle.
Some call this a “Black Art” it is something you can only learn over time.
Anthony Hewitt from race Shock specialists has had 27 years experience Revalving shocks for all types of motorsport, road and custom vehicles. With the use of his SPA Shock dyno he can test the performance of a shock absorber and check the changes are correct.