Titanium metal is used in automotive applications, particularly in automobile or motorcycle racing, where weight reduction is critical while maintaining high strength and rigidity. Titanium is used in many sporting goods: tennis rackets, golf clubs, lacrosse stick shafts, cricket, hockey, lacrosse and football helmet grills, and bicycle frames and components. Titanium alloys are also used in spectacle frames. The two most common Titanium alloys used in the cycling industry are 6AL-4V (Grade 5) and 3AI-2.5V (Grade). These two different alloys are both high strength Titanium and are both fairly common in the Industry.