All-season high-performance radial-ply passenger pneumatic tire

An all-season high-performance radial-ply pneumatic tire for passenger and light truck vehicles, the tire comprising:

• (a) a tire carcass including a pair of axially spaced annular beads, annular tensile members within the beads, a pair of plies having cords extending radially of the tire between the annular tensile members, reinforcing belt structure circumferentially surrounding and reinforcing the carcass, liner means positioned on the inner side of the carcass for retaining pressurized air within the tire when it is mounted on a rim and inflated, and a tire tread positioned radially outwardly of the belt structure, the tread having a ground-engageable surface and two axially opposite lateral edges, the lateral edges of the tread being defined by the lateral width of the tread surface that contacts the ground when the tire is mounted on its design rim and is at normal-inflation pressure and normal load,
• (b) the tire tread being made of elastomeric material and having grooves of depth at its lateral edges equal to the full groove depth at the mid-circumferential plane of the tire, such grooves at the lateral edges being angled in the axial direction for a distance of at least one-half inch at the tread surface and having a width at such surface of at least 0.060 inch;
• (c) the tire having a nominal section width of 205 mm, a nominal aspect ratio of 70 and being constructed for mounting on a 14 inch design rim;
• (d) said tire weighing substantially 22.75 lbs., having a tread arc width (inflated) of substantially 6.34 inches, a non-skid depth of substantially 0.31 inches, a tread thickness of substantially 0.410 inches, a total crown thickness of substantially 0.669 inches, a total shoulder thickness of substantially 0.676 inches, a shoulder tread rubber thickness of substantially 0.385 inches, and a tread void volume of substantially 40%.