Patent ID: 6877538

Claim:
A pneumatic tire as molded, to be mounted on a one-piece tubeless drop center rim having a ledge inclined at a taper angle of 15°, comprising a pair of bead portions, each bead portion having a bead core, each bead core having a bead base, radially inward of and wider than each bead base there being a bead seat profile, the bead seat profile having at least two portions with different taper angles the first portion, close to the bead heel being substantially straight and having an inclination close to 20 degrees with respect to the axis of the tire; the second and further portions, adjacent to the first portion and closer to the bead toe, being curved or straight, with increasing inclinations with respect to the axis of the tire; and the first portion of the bead seat profile being substantially parallel to the radially inner base of the bead core and wherein the bead seat profile has at least a third portion close to the bead toe with a taper angle as molded of about 35° with respect to the axis of the tire.