O.Z. knows that the best way to provide the best product isn't to seclude yoursef but to ask others for input and help. They have formed partnerships with Italian-Swiss designer Franco Sbarro, the European Institute of Design, and the Tokio Communication Arts in Japan. The company has a huge list (seriously, it'd bore you, if we listed all of them) of quality control tests, including "Fatigue test wheel subjected to the same mechanical stress of a car driving along a bend," "Chemical analysis on raw materials and castings," and "Impact test (crash test) simulation of stresses that the wheel might suffer on the road."