Patent ID: 6988522

Claim:
A pneumatic radial ply runflat tire having a tread terminating in a pair of shoulders, a carcass structure comprising at least one radial carcass ply, two bead regions, two sidewalls, each sidewall having an upper sidewall portion that connects to the shoulders and being reinforced by an insert, a belt structure between the tread and the carcass, and an air impermeable inner liner formed of a butyl rubber located radially inward of the carcass structure wherein: the insert is located radially inward of the carcass ply, radially inward of the insert is an insert liner that extends from one bead region to the opposing bead region, and the air impermeable inner liner is radially outward of the insert liner and extends only from a location adjacent and radially inward of one upper sidewall to a location adjacent and radially inward of the opposing upper sidewall.