Pneumatic tire

A pneumatic tire, comprising a tire component formed from a rubber composition,

• the rubber composition having cured rubber properties satisfying all relationships (1) to (3):
• tan δ≤0.11 (1),
• 1.10≤(E*a/E*b)≤1.53 (2), and
• 0.072≤(E*a/HS)≤0.140 (3)
• wherein
• the tan δ in relationship (1) is a tan δ determined by viscoelastic measurement at an initial strain of 10%, a dynamic strain of 1%, and a temperature of 50° C.;
• the E*a in relationships (2) and (3) is a complex modulus E*a in a circumferential direction of the tire determined by viscoelastic measurement at an initial strain of 10%, a dynamic strain of 1%, and a temperature of 50° C.;
• the E*b in relationship (2) is a complex modulus E*b in a direction orthogonal to the circumferential direction of the tire determined by viscoelastic measurement at an initial strain of 10%, a dynamic strain of 1%, and a temperature of 50° C.;
• and
• the HS in relationship (3) is a hardness (HS) at 50° C. determined in accordance with JIS K6253-1,
• wherein the tire component is a sidewall and/or an innerliner,
• wherein the rubber composition comprises a rubber component and a short fibrous filler, and
• the short fibrous filler has a fiber width of 3 to 200 nm, a fiber length of 0.2 to 10 μm, and a ratio of the fiber length to the fiber width (fiber length/fiber width) of 5 to 1,000.