Overall widthThe linear distance between the exteriors of the sidewalls of aninflated tire, including elevations due to labeling, decorations,
or protective bands or ribs.PlyA layer of rubber-coated parallel cords.Ply separationA parting of rubber compound between adjacent plies.Pneumatic tireA mechanical device made of rubber, chemicals, fabric and steel or other materials, that, when mounted on an automotive
wheel, provides the traction and contains the gas or
fluid that
sustains the load.
Radial ply tireA pneumatic tire in which the ply cords that extend to the
beads are laid at substantially 90 degrees to the center line of the tread.Reinforced tireA tire designed to operate at higher loads and at higherinflation pressures than the corresponding standard tire.Section widthThe linear distance between the exteriors of the sidewalls of aninflated tire, excluding elevations due to labeling, decoration, or
protective bands.SidewallThe portion of a tire between the tread and bead.Sidewall separationThe parting of the rubber compound from the cord material in
the sidewall.Snow tireA tire that attains a traction index equal to or greater than 110,
compared to the ASTM E1136-93 (re-approved 2003,
incorporated by reference, see
