Crown reinforcement for a radial tire

A tire having a radial carcass reinforcement, surmounted by a crown reinforcement comprising at least two plies of reinforcement elements which are parallel to each other within each ply, said two plies being of unequal axial widths, wherein at least one first profiled element P of rubber mix separates the axially widest ply of reinforcement elements from at least one end of a second ply, axially narrower than the axially widest ply, wherein the axially outer end of said first profiled element P is located at a distance from the equatorial plane of the tire less than the distance between said plane and the end of the axially widest ply of reinforcement elements, wherein said profiled element P is radially separated at least in part from the liner C of said axially narrowest ply of reinforcement elements by a second profiled element of rubber mix G, and wherein said first and second profiled elements of rubber mix P and G and said liner C have secant modules of elasticity under tension at 10% elongation MP, MG, MC respectively such that MC≧MG>MP.