| 摘要 |
The tread comprises a block pattern having a circumferentially extending row of tread blocks (1) aligned substantially along the tyre circumferential centreline (C) to provide a central row of blocks, each central tread block (1) being defined on its axial left and right sides by circumferentially extending left-side and right-side grooves (LG,RG), characterised in that the depth profiles of the left-side and right-side grooves (LG,RG) are different.
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