Pneumatic tire

A pneumatic tire comprising:

• a pair of bead portions provided to face each other in a tire width direction, each of the bead portions comprising:
• a bead core;
• and
• a bead filler that buries the bead core, the bead filler being made of rubber having JIS hardness in a range from 70 to 100;
• a carcass layer having a single-layered structure and extending between the bead portions, the carcass layer comprising reinforcing cords extending in a tire radial direction and being arranged in a tire circumferential direction;
• and
• a plurality of belt layers disposed at outer circumference of the carcass layer at a tread portion,
• wherein the carcass layer is folded around the bead core from inside to outside in a tire axial direction to enfold the bead filler and to have a folded portion that extends to a position beneath a side edge portion of one of the belt layers, and
• wherein the pneumatic tire further comprises a rubber reinforcing layer made of rubber having JIS hardness in a range from 70 to 100 and having average thickness in a range from 0.5 mm to 3.0 mm, the rubber reinforcing layer being disposed on the folded portion of the carcass layer at an outer side in the tire axial direction at a side wall portion to extend across a maximum width position Pm of the carcass layer.