| abstract |
(57) [Summary] [PROBLEMS] To effectively reduce noise due to air column resonance and noise due to tread and sidewall vibrations that cause tire noise without sacrificing wet performance or running performance. We propose pneumatic tires. A pneumatic pump having a carcass extending across a pair of bead cores as a skeleton, a tread disposed radially outside a crown portion of the carcass, and a circumferential groove extending in a tread circumferential direction on a surface of the tread. The tire is provided with a resonance tube structure formed by connecting a cavity provided inside a tread and the peripheral groove by a passage. |