The weld wide 5 XL aluminum wheel has cold drawn rim halves. Made from Proprietary aluminum alloy. Lighter and stronger. Exclusive roll forged rim lip increases bead seat. Strength keeps rim ridged and round. Forged coined lug holes - dual patterned for longevity and durability. Cold drawn .190 thick heavy duty rim halves. Increased rim thickness for extra strength. Exclusive Roll Forged rim lip increases bead seat strength-keeps rim rigid and round on the most abusive racing surfaces. Forged coined lug-holes - dual patterned for longevity/durability. Learn more about determining the proper wheel offset torque sequence and bolt pattern for your application by reading our tech article. Racing Wheel Principles.