| 摘要 |
The tyre, designed to be fitted to a wheel rim (J) with at least one outward sloping seat (2), has at least one of its beads made with an outward sloping seating surface. The bead contains a circumferential reinforcing element (5) and a core (7) of a rubber mixture with greater rigidity, and has a seating surface with at least one continuous circumferential rib (9) situated axially outside a plane perpendicular to the tyre's axis of rotation and outside an axial tangent to the reinforcing element to provide a continuous contact pressure line between the bead and rim seat at a pressure equal to or greater than the inflated pressure of the tyre. The base of the rib measures between 0.5 and 3 mm and its height between 0.1 and 1 mm. |
