Abstract: A tire with a radial carcass reinforcement, having a crown reinforcement, itself capped radially by a tread connected to two beads by two sidewalls, having at least two radially superposed layers of elastomeric compounds; a first layer, forming the radially outer part of the tread, has a first elastomeric compound having a modulus G* greater than 1.8 MPa, a second layer of elastomeric compounds radially on the inside of and in contact with the said first layer of elastomeric compound has at least three parts, the axially outer parts having a second elastomeric compound having a maximum value of tan (?), denoted tan (?) max, strictly less than 0.060, and at least a part of the second layer, axially in contact with at least an axially outer part having a third compound with modulus G* greater than 1.2 MPa and at least 5% less than the first elastomeric compound and a maximum value of tan (?), tan (?)max, between 0.060 and 0.120.

Abstract: Tire comprising a crown reinforcement formed of four working crown layers of reinforcing elements. In a meridian plane, the thickness of the four working crown layers, measured in the equatorial plane, is less than 5 mm, the reinforcing elements of the four working crown layers being individual metal wires of diameter less than 0.50 mm, the distance between the reinforcing elements, measured along the normal to the direction of the mean line of the wire, being strictly less than 1 mm, and the axial width of each of the four working crown layers being greater than 60% of the axial width of the tread.

Abstract: Tire comprising a crown reinforcement formed of three working layers having between ends thereof two layers of rubber compound Ci. Thickness of the three working layers is <5 mm with individual metal wires as reinforcing elements of diameter <0.50 mm and a distance therebetween being strictly <1 mm. The axial width of each working layer is >60% that of the tread. Distance di between two working layers separated by a layer of rubber compound Ci and measured at the end of the axially narrowest working layer in contact therewith is such that 0.5<di<2.5 mm, and, in a meridian plane, the thickness of at least one layer of rubber compound Ci is substantially constant over the axial width between the axially inner end of a layer of rubber compound Ci and the end of the axially narrowest working layer in contact therewith.

Abstract: A tire with a radial carcass reinforcement, having a crown reinforcement, itself capped radially by a tread connected to two beads by two sidewalls, having at least two radially superposed layers of elastomeric compounds; a first layer, forming the radially outer part of the tread, has a first elastomeric compound having a modulus G* greater than 1.8 MPa, a second layer of elastomeric compounds radially on the inside of and in contact with the said first layer of elastomeric compound has at least three parts, the axially outer parts having a second elastomeric compound having a maximum value of tan (?), denoted tan (?) max, strictly less than 0.060, and at least a part of the second layer, axially in contact with at least an axially outer part having a third compound with modulus G* greater than 1.2 MPa and at least 5% less than the first elastomeric compound and a maximum value of tan (?), tan (?)max, between 0.060 and 0.120.