Pneumatic tire

A pneumatic tire comprising:

• a carcass;
• a belt layer arranged on an outer circumference of a crown of the carcass;
• and
• a belt reinforcing layer arranged on an outer circumference of the belt layer, wherein
• the belt layer has a belt ply in which steel cords are arranged at an angle to a tire circumferential direction,
• the belt reinforcing layer has a belt reinforcing ply on the outer circumference of the belt layer, the belt reinforcing ply having organic fiber cords arranged in the tire circumferential direction,
• the belt ply has an in-plane rigidity of 4.0 [kN/inch] or more and 10.0 [kN/inch] or less in a tire width direction, and
• A, B, C, and D satisfy relationships represented by the following Expression (I) and Expression (II),
• 2
• .
• 0
• ≤
• C
• /
• (
• A
• ×
• (
• 90
• -
• B
• )
• )
• Expression
• ⁢
• (
• I
• )
• 8.
• ≤
• D
• /
• (
• A
• ×
• (
• 90
• -
• B
• )
• )
• ≤
• 3
• ⁢
• 0
• .
• 0
• Expression
• ⁢
• (
• II
• )
• where:
• A [N/inch] is a bending load per unit width of a sheet of the belt ply;
• B [deg] is an angle of the steel cords in the belt layer with respect to the tire circumferential direction;
• C [N/25 mm] is a product of a load [N] at 2% elongation of each of the organic fiber cords and the number of the organic fiber cords implanted in the belt reinforcing ply [cords/25 mm];
• and
• D [N/25 mm] is a product of a load [N] at 5% elongation of each of the organic fiber cords and the number of the organic fiber cords implanted in the belt reinforcing ply [cords/25 mm].