Heavy duty tire

A heavy duty tire having a nominal aspect ratio of not less than 70%, the tire comprising:

• a pair of beads;
• a carcass extending on and between the pair of beads;
• a reinforcing layer located radially outward of the carcass;
• and
• a tread covering the reinforcing layer and configured to come into contact with a road surface, wherein
• the tread has a plurality of circumferential grooves extending continuously in a circumferential direction,
• the plurality of circumferential grooves include a shoulder circumferential groove located on each outermost side in an axial direction,
• the reinforcing layer includes a belt including a large number of belt cords aligned with each other, and a band including a helically wound band cord,
• the belt includes an inner belt ply and an outer belt ply aligned in a radial direction,
• a direction of inclination of the belt cords included in the inner belt ply is opposite to a direction of inclination of the belt cords included in the outer belt ply,
• the band includes a full band located between the inner belt ply and the outer belt ply,
• ends of the inner belt ply, the outer belt ply, and the full band are located axially outward of the shoulder circumferential groove,
• a distance UFc between the full band and the inner belt ply is longer than a distance SFc between the full band and the outer belt ply at an equator plane of the tire,
• a ratio (UFc/SFc) of the distance UFc between the full band and the inner belt ply to the distance SFc between the full band and the outer belt ply at the equator plane of the tire is not less than 2.0,
• a cord density of the full band is not less than 22 ends/50 mm, and
• the band includes an edge band, and each narrow buffer layer is between the edge band and the outer belt ply.