Produced by Iroha Works Ken Bath.
A variable damping valve that dramatically changes the movement of shock.

Produced by Iroha Works Ken Bath. By attaching a valve (one piece of film) to the upper part or the lower part of the piston. it was possible to change the damping force of the extension side and the compression side like the damper of the actual car.
12 sheets of 1 sheet included. Please use mineral oil with low viscosity.

When shrinking. oil flows through the hole of the piston pushing the valve.
When stretching. the hole of the piston is blocked and oil flows from the side face.
If the valve installation is turned upside down. the flow of oil will also be reversed.