Tyre for motorcycles includes a carcass structure, a belt structure arranged in a radially outer position with respect to the carcass structure and a tread band arranged in a radially outer position with respect to the belt structure, wherein the belt structure is of the zero degree type and includes at least one reinforcing cord having an elongation at break smaller than about 3%; the cord includes a plurality of first metal wires twisted together so as to form a core of first metal wires and a plurality of second metal wires twisted together around said core; and the number and the diameter of the second metal wires are such that the second metal wires are not able to fully enclose the core.

A pneumatic tire comprises a tread portion provided with a band layer disposed radially inside a tread rubber provided with a first circumferential groove. Cords of the band layer are a hybrid cord formed by twisting together a first filament and a second filament having an elastic modulus lower than that of the first filament. In a region radially inside the first circumferential groove, a maximum thickness t1 of topping rubber on the radially outer side of the band cords is not more than 1.0 mm; a minimum distance d1 from the bottom of the first circumferential groove to the radially outer surface of the band layer is not more than 2.0 mm; and a distance d2 from a groove edge of the first circumferential groove to the radially outer surface of the band layer is not more than 15.0 mm.

A motorcycle tire comprising: a carcass extending between a pair of bead portions 4 through a tread portion 2 and a pair of sidewall portions 3, and a band 7 disposed radially outside the carcass in the tread portion. The band 7 is composed of a ply of a spirally wound steel band cord 10, and the steel band cord 10 has a compressive stiffness of not more than 500 N/mm, a bending rigidity of not more than 15.0 g cm, and an elongation percentage at 49N of 0.5% to 2.5%.

A pneumatic radial tire of the present technology has a belt reinforcing layer and a tread rubber. The belt reinforcing layer comprises a composite fiber cord having one aromatic polyamide fiber cord and one aliphatic polyamide fiber cord twisted therein. A total fineness of the composite fiber cords is from 1800 to 3200 dtex and an elongation under a load of 2.0 cN/dtex is from 3.0 to 4.0%. A rubber composition constituting the tread rubber is formed by compounding from 10 to 110 parts by weight of a silica having a nitrogen adsorption specific surface area of not less than 100 m.sup.2/g with 100 parts by weight of a diene rubber. A loss compliance of the rubber composition at 60 C. is not greater than 45 Pa.sup.1.

Hooping layer (71) of a passenger vehicle tire has a force at break FR per mm of axial width of the hooping layer at least equal to 35 daN/mm, an elongation at break AR at least equal to 5%, and a secant extension modulus MA at least equal to 250 daN/mm, for an applied force F equal to 15% of FR. Working reinforcement (6) comprises single working layer (61) the working reinforcers of which form, with circumferential direction (YY), an angle A.sub.T at least equal to 30 and at most equal to 50. The carcass reinforcers of at least one carcass layer (81) form, with circumferential direction (YY) and in equatorial plane (XZ), angle A.sub.C2 at least equal to 55 and at most equal to 80 and having an orientation opposite to angle A.sub.T of the working reinforcers so that the carcass reinforcers and the working reinforcers constitute a triangulation.

On a tread of the pneumatic tire, circumferential grooves extending along the tire circumferential direction are formed. The spiral belt has a reinforcing cord wound in the tire circumferential direction. The tensile elongation at break of the reinforcing cord is 10 cN/dtex or more, and the elongation at break of the reinforcing cord is 13% or less. The spiral belt is formed by winding a cord unit, in which a plurality of reinforcing cords are arranged along the tire width direction, around the tire circumferential direction. The width of the cord unit in the tire width direction is narrower than the width GW of the circumferential groove in the tire width direction.

In a pneumatic tire including a belt reinforcing layer and a tread portion made up of cap tread and under tread layers, a polyethylene terephthalate fiber cord constituting the belt reinforcing layer has an elongation ratio of 2.0-4.0% under a load of 2.0 cN/dtex at 100 C., the under tread layer is made of a rubber composition blending, per 100 parts by mass of rubber component, 35-60 parts by mass of carbon black having a CTAB adsorption specific surface area of less than 70 m.sup.2/g and 3-30 parts by mass of silica having the CTAB adsorption specific surface area of less than 180 m.sup.2/g and has a hardness at 20 C. from 60-65, a tensile stress at 100% elongation at 100 C. of 2.0-4.0 MPa, and a product of a tensile strength at 100 C. and an elongation at break at 100 C. of 2000 or more.

Pneumatic radial tire comprising a tread (4) forming the outermost layer of the tire (1) and at least one belt (5) on top of the carcass (3) forming the inner layer of the tire (1). As cap ply reinforcement layer (6) hybrid cords are applied comprising polyethylene terephthalate (PET) and nylon 6.6 multifilament yarns to provide a pneumatic radial tire having high speed durability and a low flatspot feature.

The invention relates to a tyre (10) comprising a hooping ply (19) comprising at least one textile wire-like hoop reinforcer element making an angle strictly less than 10 with the circumferential direction (Z) of the tyre (10). The bonded textile wire-like reinforcer element has, before the step of production of the hooping ply (19), a tangent modulus less than or equal to 5 cN/tex/% for any elongation less than or equal to 3%. The textile wire-like hoop reinforcer element has, once extracted from the tyre (10), a tangent modulus greater than or equal to 5 cN/tex/% for any elongation greater than or equal to 4%.

A pneumatic tire includes a carcass, a tread portion and a belt having a first inclined belt ply, circumferential direction belt ply, second inclined belt ply, and third inclined belt ply. With respect to a tire circumferential direction, an angle of cords of the first inclined belt ply is from 45 to 60, an angle of a cord of the circumferential direction belt ply is 5 or less, an angle of cords of the second inclined belt ply is from 30 to 60, and an angle of cords of the third inclined belt ply exceeds 5 and is 30 or less. The width of the third inclined belt ply is 80% or more of a ground contact width, and the cords of the second inclined belt ply and the cords of the third inclined belt ply are inclined in opposite directions with respect to the tire circumferential direction.