A heavy truck tire that has a central axis, a radial direction, and an axial direction, comprising: a tread; a casing that carries the tread, wherein the casing has a bead (18, 24) that has: a bead core (20, 28) that has a rod and padding gum; a reinforcement ply that wraps around a section of the bead core (20, 28), wherein the reinforcement ply has a return casing ply a portion of which is outboard in the axial direction from the bead core (20, 28); a bead filler that has a portion radially outward from the bead core (20, 28) in the radial direction and axially inboard from the return casing ply in the axial direction; a stiffener layer that has a portion located outboard from the return casing ply in the axial direction; a first bead layer that has a portion that is between the return casing ply and the stiffener layer in the axial direction; a second bead layer that has a portion that is outboard from the stiffener layer; characterized in that the stiffness of the first bead layer is 8 MPa to 14 MPa when calculated as the Young's modulus MA10 using French standard NF T 46-002, September 1988; the stiffness of the second bead layer is 8 MPa to 14 MPa when calculated as the Young's modulus MA10 using French standard NF T 46-002, September 1988; wherein the stiffness of the bead filler is less than the stiffness of the first bead layer, and wherein the stiffness of the bead filler is less than the stiffness of the second bead layer. a tread; a casing that carries the tread, wherein the casing has a bead (18, 24) that has: a bead core (20, 28) that has a rod and padding gum; a reinforcement ply that wraps around a section of the bead core (20, 28), wherein the reinforcement ply has a return casing ply a portion of which is outboard in the axial direction from the bead core (20, 28); a bead filler that has a portion radially outward from the bead core (20, 28) in the radial direction and axially inboard from the return casing ply in the axial direction; a stiffener layer that has a portion located outboard from the return casing ply in the axial direction; a first bead layer that has a portion that is between the return casing ply and the stiffener layer in the axial direction; a second bead layer that has a portion that is outboard from the stiffener layer; characterized in that the stiffness of the first bead layer is 8 MPa to 14 MPa when calculated as the Young's modulus MA10 using French standard NF T 46-002, September 1988; the stiffness of the second bead layer is 8 MPa to 14 MPa when calculated as the Young's modulus MA10 using French standard NF T 46-002, September 1988; wherein the stiffness of the bead filler is less than the stiffness of the first bead layer, and wherein the stiffness of the bead filler is less than the stiffness of the second bead layer. a bead core (20, 28) that has a rod and padding gum; a reinforcement ply that wraps around a section of the bead core (20, 28), wherein the reinforcement ply has a return casing ply a portion of which is outboard in the axial direction from the bead core (20, 28); a bead filler that has a portion radially outward from the bead core (20, 28) in the radial direction and axially inboard from the return casing ply in the axial direction; a stiffener layer that has a portion located outboard from the return casing ply in the axial direction; a first bead layer that has a portion that is between the return casing ply and the stiffener layer in the axial direction; a second bead layer that has a portion that is outboard from the stiffener layer; characterized in that the stiffness of the first bead layer is 8 MPa to 14 MPa when calculated as the Young's modulus MA10 using French standard NF T 46-002, September 1988; the stiffness of the second bead layer is 8 MPa to 14 MPa when calculated as the Young's modulus MA10 using French standard NF T 46-002, September 1988; wherein the stiffness of the bead filler is less than the stiffness of the first bead layer, and wherein the stiffness of the bead filler is less than the stiffness of the second bead layer.