Alcoa has rolled out the world’s lightest heavy-duty truck wheel. This latest Alcoa innovation, the Ultra ONE™, will help trucks shed pounds for increased payload and fuel efficiency. Unveiled at the Mid-America Trucking show in Louisville, Kentucky, Alcoa’s new 40-pound wheel is 47 percent lighter than steel wheels of the same size. The Ultra ONE can help save up to 1,400 pounds per rig, enabling fleets to…