Pneumatic tire with specified band cord

A pneumatic tire comprising

• a carcass extending between bead portions through a tread portion and sidewall portions,
• a breaker disposed radially outside a crown portion of the carcass and made of cords laid at an angle of from 15 to 40 degrees with respect to the tire equator,
• a band disposed radially outside of the breaker and comprising a full-width band ply extending over the substantially overall width of the breaker and made of at least one cord forming a small angle with respect to the tire equator, wherein
• a cord or cords of said full-width band ply existing in a tread crown region satisfy the following conditions Eq.1-Eq.5,
• T>0.8 Eq.1
• 0≦K+6.67T−21.7 Eq.2
• 0≦45−10T−K Eq.3
• 0≦106.8−57.5T−K Eq.4
• 7≦E≦13 Eq.5
• wherein
• the tread crown region is defined as a region centered on the tire equator and having an axial width of either 30 mm or 25% of the axial width of the breaker which is not less than the other,
• the symbol “K” is an stretch-resistance index (N) of a cord which is defined as the product of the sectional area S in sq.mm and 2% modulus M in N/sq.mm of the cord divided by 100,
• the symbol “T” is an stretch in % of the cord in the tire being in its natural state without being mounted on a wheel rim, and
• the symbol “E” is a cord count per 1 cm width of the full-width band ply.