I'm not convinced that the cartidges in the Versys forks have shim stacks at all, but rather some sort of cheaper damping method. Kawasaki calls them cylinder assemblies, and you can get them brand new for under $100 each (compared to almost $300 each for a Z1000 replacement), which tells me the damping internals can't be that complicated--only taking them apart (which the service manual cautions against) will tell. Taking them apart would also answer the debate over whether the left fork leg has any damping at all vs. some control. When I switched to Silkolene Pro RSF 10W, and pumped the solid piston rod up and down on the left fork before draining the stock oil, there seemed to be no damping action at all, and the oil was free to spill out between the rod and cylinder. This is compared with the right leg, with the oil travelling through a hollow piston rod, and a controlled clearance between the rod and cylinder, having significant damping action, both compression and rebound. If I had 200 bucks to blow on it, I would order the left and right cylinder assemblies to take them apart and find out how they are designed. Maybe next year, unless Race Tech ends up publishing some information on it.
Last edited by Wyorider; 08-23-2009 at 12:33 AM.