Pneumatic tire

An assembly, comprising:

• a rim;
• and
• a pneumatic tire that is assembled on the rim,
• wherein the pneumatic tire comprises
• 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 a JIS hardness in a range from 70 to 100, wherein a radially inner surface of each of said bead cores is positioned at the same height;
• 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 an 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,
• wherein the pneumatic tire further comprises a rubber reinforcing layer is made of rubber, having a JIS hardness in a range from 70 to 100 and having an 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 a tire axial direction at a side wall portion to extend across a maximum width position Pm of the carcass layer,
• wherein an inner face toward which the pneumatic tire is fixed to a vehicle and an outer face opposing the inner face are defined, and
• wherein a rubber reinforcing layer positioned at the inner face is provided more inward in the tire radial direction than a rubber reinforcing layer positioned at the outer face.