Heavy-duty tire

A heavy-duty tire, comprising:

• a tread part having a crown profile including a tire equator, and a pair of shoulder profiles extending from outer sides of the crown profile to tread edges, respectively such that a curvature radius Rc of the crown profile is in a range of 720 mm to 2400 mm and that a curvature radius Rs of each of the shoulder profiles is in a range of 150 mm to 300 mm,
• wherein in a tire cross section including a tire rotation axis in a 5% internal pressure state in which the heavy-duty tire is mounted to a normal rim, filled with air at an internal pressure of 5% of a normal internal pressure and loaded with no load, each of the crown profile and the shoulder profiles has an arc shape that is convex toward a tire radial direction outer side such that a ratio Rc/Rs of the curvature radius Rc of the crown profile to the curvature radius Rs of each of the shoulder profiles is in a range of 7.0 to 16.0, and a tire axial direction distance from the tire equator to a connecting point between the crown profile and each of the shoulder profiles is in a range of 0.73 to 0.8 times a tread half width.