| 摘要 |
A pneumatic tire comprises a carcass 1 of at least one carcass ply, a belt 2 comprised of at least three belt layers, and a tread 3 provided with plural circumferential grooves 3a and island portions 3b defined by these circumferential grooves 3a, in which the tread 3 is comprised of at least two rubber layers, one of which layers being a foamed rubber layer 4 not exposed at a side of ground contact surface of the tire. In this case, the foamed rubber layer 4 is extended up to a buttress portion of the tire, whereby noises produced during the running of the tire are effectively reduced without the degradation of wear resistance. <IMAGE> |
