In addition to the basic function of the Type HR Damper, they have added damping level adjustments. The variety of so much different damping effect is able to cover all setting range needed from soft (a degree of your vehicle's original damper) to hard (stiff as the N1 endurance race car) in 16 levels. All products meet Japanese car regulations.

Type HA can be disassembled so that dampers can be overhauled and settings changed. A different spring rate for the HA damper is also available on request with recommendatery spec.

16 Level Damping Effect Characterized Diagram (S13, Ft expansion) Type HA Damper has an adjustable function for its expansion / contraction level so that the driver can select his / her own choice of damping force needed. The varieties of different levels of damping force covers wide setting range from that of the original shock absorbers to the level of race cars. A minute orifice which characterizes the suspension of the vehicle is fully controlled by the special formed needle with high response at steering, braking, and throttle control. Furthermore, the damping effect reacts linearly to the adjusting dial. It is valid for all 16 levels.