Pneumatic tire

A pneumatic tire comprising

• a tread portion,
• a pair of sidewall portions,
• a pair of bead portions,
• an annular bead core embedded in each bead portion of the tire, and
• a carcass comprising a carcass ply extending between the bead portions through the tread portion and the sidewall portions, and turned up around the bead core in each bead portion, wherein
• the bead cores are each composed of a plurality of wire rings each of which is made of a spirally overlap-wound bead wire and which are arranged in the tire axial direction, and
• said plurality of wire rings are arranged adjacently one next to the other in the tire axial direction, wherein
• the bead cores each have a radially outer end and a radially inner end, and
• the bead wire of each of the wire rings extends spirally and continuously from the radially outer end to the radially inner end of the bead core, wherein
• the wire rings include a first ring configuration whose bead wire is a twisted cord made of a plurality of filaments twisted together, and a second ring configuration whose bead wire is a monofilament cord made of a single filament, wherein
• said plurality of wire rings comprises an axially outermost wire ring which has the first ring configuration, a middle wire ring which has the first ring configuration disposed on the axially inside of the axially outermost wire ring, and an axially inner wire ring which has the second ring configuration disposed on the axially inside of the middle wire ring wherein the number of spiral turns of the bead wire of each wire ring is not less than 1.5 times the number of the wire rings arranged in the tire axial direction.