A low profile chassis and suspension system for a road vehicle. The seal plate system may be formed from a seal plate supported by a plurality of extended disk lugs extending from a disk. The second disc is translationally stationary relative to the first disc and is capable of rotation under the action of the lever actuation via a nut partially containing a thermostatic-member-moving assembly which is rotatably connected to the control lever about the axis and which is provided with extensions that engage mechanically with the second disc for rotating same. The damper includes a matrix and at least one carbon nanotube structure disposed in the matrix. Shock absorbing material is filled between the third tube and the fourth tube. Portability is facilitated by wheels on which the wire cart may be rolled.