| 摘要 |
A pneumatic tire comprising a tread portion provided with oblique grooves to define narrow and circumferentially long blocks therebetween, the oblique grooves inclined at angles theta of not more than 60 degrees with respect to the circumferential direction of the tire, each of the long and narrow blocks provided with at least tow sipes each extending across the block from one of the adjacent oblique grooves to the other, while inclining reversely to the oblique grooves, to subdivide the block into at least three block pieces.
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