| 摘要 |
A pair of high-transverse-curvature tyres, in particular for equipping a two-wheeled vehicle, in which the belt structure of the rear tyre comprises a layer of inextensible cords disposed at a substantially zero angle with respect to the equatorial plane of the tyre, preferably wound on a sheet of elastomeric material reinforced with aramide pulp, whereas the belt structure of the front tyre comprises at least one radially outer layer of inextensible cords disposed at a substantially zero angle with respect to the equatorial plane of the tyre and distributed with an axially variable density, and preferably, another reinforcing layer at a radially underlying position. The zero-degree cords preferably are metallic cords, of the high elongation type, made of high-carbon steel. In the belt structure of the front tyre the distribution density of said cords continuously increases from the centre to the belt ends starting from a value of about 6 cords/cm at an area of a width included between 10% and 30% of the axial extension of said belt, disposed on either side of the equatorial plane. <IMAGE> |
