High-transverse-curvature tire

A process for the manufacture of a high-transverse-curvature tire comprising the steps of:

• previously manufacturing a carcass structure comprising at least one carcass ply having edges which are turned back around two bead cores;
• arranging an auxiliary support element on a comb drum, wherein the auxiliary support element is made in a form of a sheet of elastomeric material wound around the comb drum;
• shaping the auxiliary support element so as to give the auxiliary support element a curvilinear transverse profile, through radial expansion of a plurality of radially movable sectors associated with the comb drum;
• circumferentially winding around the auxiliary support element at least one inextensible cord forming a plurality of circumferential coils disposed consecutively side-by-side to define a belt structure of a curvilinear transverse profile;
• circumferentially applying a tread band to the belt structure;
• and
• applying the belt structure together with the tread band to a circumference of the previously manufactured carcass structure, the elastomeric material forming the auxiliary support element having a blend of bonding means provided in order to increase stretchability of the elastomeric material without substantially altering adhesiveness thereof;
• wherein the bonding means comprises aramid pulp.