| 摘要 |
A pneumatic tire (1) including: a pair of bead portions (3) each including a bead core and a bead filler; a carcass layer (5) extending toroidally via a sidewall portion (SW); a tread portion (7) arranged outward of the carcass layer in a radial direction of a tire; and sidewall reinforcement layers (9) which are arranged inward of the carcass layer (5) in a tread width direction, are each formed of rubber having a crescent cross-section in the tread width direction, and reinforces the respective sidewall portions (SW), characterized in that an inside width direction groove (17) is arranged in an inside region (IN) of the tread portion (7), and a circumferential direction groove (23) and an outside width direction groove (25) are arranged in an outside region (OUT) of the tread portion (7). |
