A pneumatic tire, comprising: a bead core embedded in a bead portion; and a bead filler disposed on the tire radial direction outside of the bead core, wherein: the bead filler has a tire radial direction outer end positioned more inward in the tire radial direction relative to the tire width direction line that passes through the rim line position to extend along the tire width direction, when viewed in section in the tire width direction of the tire when the tire has been assembled to an applicable rim and filled with a predetermined internal pressure with no load applied thereon; the bead portion has a ridge forming portion formed on an outer surface thereof, the ridge forming portion including a ridge extending in the tire radial direction; the bead portion has a bead base which is a surface on the tire radial direction inside of the bead core and which faces inward in the tire radial direction, the bead base being substantially flat and extending between a bead heel at its tire width direction outer end and a bead toe at its tire width direction inner end; the rim line position is an intersection between a virtual line and a tire outer surface when the tire has been assembled to an applicable rim and filled with a predetermined internal pressure with no load applied thereon, the virtual line extending in parallel to the tire width direction as passing through a position outside in the tire radial direction at a distance of 20.0 mm from the bead heel, or, where the intersection between the virtual line and the tire outer surface is positioned inward in the tire radial direction relative to the tire width direction line passing through a separating point between the tire and the applicable rim, the rim line position is a position passed by the tire width direction line passing through the separating point between the tire and the applicable rim; and the ridge forming portion is positioned in a rim-flange contact portion lying between the bead heel and the rim line position. the bead filler has a tire radial direction outer end positioned more inward in the tire radial direction relative to the tire width direction line that passes through the rim line position to extend along the tire width direction, when viewed in section in the tire width direction of the tire when the tire has been assembled to an applicable rim and filled with a predetermined internal pressure with no load applied thereon; the bead portion has a ridge forming portion formed on an outer surface thereof, the ridge forming portion including a ridge extending in the tire radial direction; the bead portion has a bead base which is a surface on the tire radial direction inside of the bead core and which faces inward in the tire radial direction, the bead base being substantially flat and extending between a bead heel at its tire width direction outer end and a bead toe at its tire width direction inner end; the rim line position is an intersection between a virtual line and a tire outer surface when the tire has been assembled to an applicable rim and filled with a predetermined internal pressure with no load applied thereon, the virtual line extending in parallel to the tire width direction as passing through a position outside in the tire radial direction at a distance of 20.0 mm from the bead heel, or, where the intersection between the virtual line and the tire outer surface is positioned inward in the tire radial direction relative to the tire width direction line passing through a separating point between the tire and the applicable rim, the rim line position is a position passed by the tire width direction line passing through the separating point between the tire and the applicable rim; and the ridge forming portion is positioned in a rim-flange contact portion lying between the bead heel and the rim line position.