Patent ID: 7201199

Claim:
A high or very high performance tyre for a vehicle wheel, comprising: a carcass; a tread band radially external to the carcass; a pair of axially distanced sidewalls; and wherein the carcass comprises at least one carcass ply, wherein the at least one carcass ply comprises ends associated with a pair of bead cores, wherein each bead core is incorporated in a respective bead, wherein each bead comprises a bead filler, wherein each sidewall is disposed, in a radial direction of the tyre, between the tread band and a respective bead, wherein each sidewall is disposed in an axially outermost position, wherein each bead core comprises a plurality of windings of a single wire, wherein the plurality of windings is axially arranged side-by-side in a plurality of radially superposed layers, wherein the plurality of windings defines a transverse hexagonal section, wherein the transverse hexagonal section is symmetrical with respect to an axis substantially parallel to the radial direction, wherein the plurality of windings comprises a radially innermost layer and a radially outermost layer, wherein an axial width of the radially innermost layer is greater than an axial width of the radially outermost layer, wherein a ratio of a height of a transverse section of the tyre to a chord of the transverse section of the tyre is less than 0.65:1, and wherein a number of windings of one of the plurality of radially superimposed layers having a maximum axial width is equal to a total number of the plurality of radially superimposed layers.