NOISE-REDUCING TIRE

In order to reduce noise energy, embodiments relate to a noise-reducing tire including lateral grooves formed in the lateral direction from the longitudinal grooves towards the sidewall, the lateral grooves widening in width towards the sidewall. A noise-reducing tire according to one embodiment comprises: side walls on opposite sides; a tread portion integrally connecting the outer circumferences of the side walls; a longitudinal groove concavely formed in the tread portion along the driving direction; and a lateral groove concavely formed from the longitudinal groove towards the side walls in the lateral direction, wherein the lateral groove expands in width towards the side walls, and the lateral groove comprises a tie bar connecting the inner walls of the lateral groove without being spaced apart from the longitudinal groove.