| 摘要 |
<p>A low noise tyre having a tread (T) provided with axial grooves (Y1, Y2) arranged at regular pitches (P) in the circumferential direction of the tyre, characterised by the circumferential length (L) of the ground contacting region of the tread (T) when the tyre is mounted on a regular rim and inflated to its normal internal pressure and loaded with its normal load, is substantially equal to the pitch (P) multiplied by an integer.</p> |
