Toyo Tire & Rubber Co. (TYO:5105) next spring will begin supplying the North American market with two new fuel-efficient super single tires for use in trucks and buses, lowering rolling resistance by around 6 percent from that of the company’s previous super single. The two new super single tires, the Nanoenergy M175 long-haul trailer tire and the Nanoenergy M675 long-haul…