Pneumatic tire

A pneumatic tire, comprising:

• a rim cushion rubber disposed in a bead portion where the bead portion and a rim are in contact with each other when the pneumatic tire is mounted on the rim;
• an electrically conductive rubber disposed in the rim cushion rubber, the electrically conductive rubber having an electrical resistance value lower than that of the rim cushion rubber, and including
• a first end exposed on an outer surface of the rim cushion rubber in contact with the rim, and
• a second end disposed in contact with a tire component adjacent to the rim cushion rubber;
• and
• a ground tread rubber disposed in a tread portion passing through a cap tread rubber and an undertread rubber of the tread portion, the ground tread rubber having an electrical resistance value lower than that of the cap tread rubber, and including
• a first end exposed on a tread surface, and
• a second end disposed in contact with a belt layer or a belt reinforcing layer,
• in a meridian cross-section, a width of the second end in a thickness direction being greater than a width of the first end;
• wherein
• the cap tread rubber has a loss tangent tan δ at 60° C. of 0.20 or greater, and the undertread rubber has a loss tangent tan δ at 60° C. of 0.20 or less, and
• the electrically conductive rubber has a greater loss tangent tan δ at 60° C. than that of the ground tread rubber.