Vehicle tire with a particular carcass ply and/or a particular circumferentially inextensible annular structure

A tire for vehicle wheels, comprising:

• a carcass structure having at least one first carcass ply and a pair of circumferentially inextensible annular structures each engaged close to a respective inner circumferential edge of the at least one first carcass ply;
• a tread band applied to the carcass structure at a circumferentially external position relative to a geometric rotation axis of the tire;
• and
• at least one pair of sidewalls applied to the carcass structure at laterally opposite positions, wherein each of the annular structures comprises:
• a first circumferentially inextensible annular insert substantially in a form of an annulus coaxial with the tire and adjacent to an inner circumferential edge of the at least one first carcass ply, the first annular insert including at least one first elongated element extending in concentric coils;
• a second circumferentially inextensible annular insert substantially in a form of an annulus coaxial with the tire at a position axially spaced apart from the first annular insert, the second annular insert including at least one second elongated element extending in concentric coils;
• and
• a filling body of elastomer material interposed between the first and second annular inserts and intimately joined to the second annular insert.