| 摘要 |
A pneumatic tire is provided with a tread pattern of left-right asymmetry having an outboard tread edge and an inboard tread edge, and a cap tread rubber having a hardness of from 60 to 75 degrees. The tread pattern comprises circumferentially extending middle main groove and outboard main groove. The middle main groove is disposed on the inboard tread edge side of the tire equator at a distance of 2 to 10 % of the tread width from the tire equator, and has a width of 2 to 6 mm. The outboard main groove is disposed on the outboard tread edge side of the tire equator at a distance of 15 to 30 % of the tread width from the tire equator, and has a width is more than that of the middle main groove, The outboard crown land zone defined between the middle and outboard main grooves is provided with circumferentially extending crown sub groove and crown narrow groove and outboard crown lateral grooves so as to form one row of central crown blocks having an axial width W1, one row of outboard crown blocks having an axial width W2, and one circumferentially extending crown narrow rib having an axial width W3, wherein the axial widths satisfy W1 >= W2 >= W3. |
