Method of manufacturing a high transverse-curvature motor-bike tire

A method for the manufacture of a high transverse curvature tire for two-wheeled vehicles, comprising the steps of:

• providing on a main assembly drum (18) a carcass structure (2) comprising at least one ply (3, 4) provided with reinforcing cords (8, 9) essentially parallel to one another and oriented along directions inclined with respect to the equatorial plane of the drum;
• providing on a comb-like drum (19) at least one strip made of an elastomeric material incorporating a plurality of reinforcing cords (12) essentially parallel to one another and oriented along directions inclined with respect to the equatorial plane of the drum;
• imparting to said at least one strip (11) a curvilinear transverse profile by radially expanding a plurality of radially mobile sectors (21) associated to the comb-like drum (19);
• circumferentially winding on said at least one strip (11) at least one inextensible cord (14), so as to form a plurality of circumferential coils (14a) consecutively arranged side by side, and to define a belt structure (10) having a curvilinear transverse profile;
• circumferentially associating a tread (15) around the belt structure (10);
• associating the belt structure (10), together with said tread (15), around the carcass structure (2),
• wherein said at least one inextensible cord (14) is wound on said at least one strip (11) of the belt structure (10) at a substantially null angle with respect to the equatorial plane of the comb-like drum (19) and according to a winding direction adapted to compression-stress portions made of an elastomeric material interposed between consecutive reinforcing cords (12) incorporated in said at least one strip (11) of the radially inner layer (10a).