A direct way to reduce weight is to replace currently used materials (all grades of steel) with lightweight equivalents like aluminium or composite materials.
- Aluminium reservoir tube assembly (including spring seat and other vehicle interfaces) for twintube struts (first production implementation in 1997)
- Aluminium tube for monotube dampers
Even greater weight saving may be achieved with composite materials. For structural elements, lower mechanical properties may be offset by complex plastic-molded geometry. Strength and stiffness is built through structural design instead of material properties.
Available composite material applications:
- Strut spring seat (first production implementation in 2013)
- Internal rebound spring (first production implementation in 2002)