How can weight be reduced and effectiveness improved through geometry, without losing any positive properties? Very easily: by combining engineering skill and materials expertise to create an intelligent design. Saving material through design allows more beneficial construction methods to be created. In the aluminium control arm using the trefoil-shaped Kleeblattdesign® shown top left, we reduce the excess material and also achieve greater buckling strength and efficiency. The head bearing used for hanging shock absorbers shown top right focuses strength where it is required, thereby allowing the wall thicknesses to be reduced at the same time.