Pneumatic tire

A pneumatic tire comprising:

• a pair of bead portions spaced apart in a tire axial direction;
• a pair of side walls provided on a tire radially outer side from the pair of bead portions;
• a tread provided between the pair of side walls;
• a carcass ply extending from the tread through the side walls and locked at the bead portions;
• a different color rubber portion provided on a tire axially outer side of the carcass ply in the side walls, and made of rubber having a lower carbon black content than rubber constituting the side walls;
• and
• a rim strip rubber provided on a tire axially outer side of the bead portions and including a portion in contact with a wheel rim, wherein
• each of the side walls includes an upper side wall rubber provided on a tire radially outer side of the different color rubber portion, and a lower side wall rubber provided between the different color rubber portion and the rim strip rubber,
• a length along a tire outer surface from an interface between the rim strip rubber and the lower side wall rubber to an interface between the lower side wall rubber and the different color rubber portion is 3% or more and 12% or less of a tire cross-sectional height, and
• in a tire axially cross section in a standard rim assembling and internal pressure uninflated state, a tire thickness from a tire inner surface to the tire outer surface is smaller at a tire axial center than at a ground contact end.