Abstract: A pneumatic tire having spaced beads and a pair of biased inner plies tied to each bead, upon which is placed a third ply disposed at a greater angle to the equatorial plane than the underlying bias plies, resulting in the outermost ply cords being "loose" in comparison to the innermost ply cords being "tight" after the tire shaping operation. The cords of the outermost ply assume a shorter effective length along with an increase in their twist (tpi) in the inflated shaped vulcanized tire than the length and twist as laid down on the building drum. A further proviso is that the cords of the third ply shall be at some degree of compression greater than as laid down on the building machine, with said compression being the maximum attainable by the cords as a consequence of the bias cords pantographing during the shaping of the tire.