A pneumatic tire includes a pair of beads each with an associated bead core and chafer, a single carcass ply folded about each bead so as to define a main body portion and a turnup portion associated with each bead, and a tread disposed radially outward from the single carcass ply, the tread having shoulder portions disposed at axial outer edges of the tread; and a pair of sidewalls extending radially outward from each chafer to a location adjacent each shoulder portion, each sidewall being disposed axially outward of the single carcass ply. The single carcass ply is reinforced with metallic cords, the metallic cords comprising filaments with diameters from 0.10 mm to 0.12 mm