B60C2009/2252

Motorcycle tire
12240279 · 2025-03-04 · ·

A motorcycle tire includes a tread portion, sidewall portions, bead portions each with a bead core therein, a carcass, and a tread reinforcing layer arranged radially outwardly of the carcass and includes a belt layer and a band layer. The belt layer includes an inner belt ply and an outer belt ply. The band layer includes a band ply arranged between the inner and outer belt plies. The inner belt ply includes belt cords oriented at an angle greater than 5 degrees to the tire circumferential direction and a first development width. The outer belt ply includes belt cords oriented at an angle greater than 5 degrees to the tire circumferential direction and a second development width. The band ply includes band cords oriented at an angle not more than 5 degrees to the tire circumferential direction. The second development width is greater than the first development width.

Pneumatic tire
12330451 · 2025-06-17 · ·

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.

Pneumatic vehicle tire

The invention relates to a pneumatic vehicle tire of radial construction having a tread (1), a radial carcass, a belt bandage (8) having at least two belt plies (8a, 8b) and having at least one belt bandage ply (9), which is arranged radially outside the belt, wherein the belt bandage ply comprises cords of at least two multifilament yarns twisted together which are arranged parallel to one another inside the belt bandage ply (9) and wherein the multifilament yarns are made of recycled polyethylene terephthalate (rPET). At a force of 1.56 cN/dtex the rPET cord (10) has an elongation of 2% to 5% at 20 C. and an elongation of 6% to 9% at 120 C., the sum of the breaking elongation of the rPET cord (10) and the heat shrinkage determined at 180 C. at a preload force of 0.01 cN/dtex and a time of exposure of two minutes is greater than 17%, and the rPET cord (10) has a heat shrinkage determined at 180 C. at a preload force of 0.01 cN/dtex and a time of exposure of two minutes of greater than 2.5%.