MUIC Magic - JH sr: 307 in order to respond to changes in-cylinder internal volume due to the entry and exit of the piston rod Goriha's twin-tube shock absorber that has a double cylinder. Inner cylinder (inner shell) is filled with oil, a piston with a piston valve is housed. At the bottom of the inner tube has a bottom valve, outside of the cylinder (outer shell) and can exchange of oil. Inert 飙窒 source of low pressure in the outer by El with oil) is sealed. Both valves, to exert a damping force easy oil flows from the bottom to the top, the structure to be lf. Not but exhibit less damping oil flows is adopted from top to bottom