| 摘要 |
PURPOSE:To provide a dual wheel tires which can have a dry property and a wet property together and especially improve in an antihydroplaning property. CONSTITUTION:Two pneumatic tires A, B are installed side by side on the same rim 2. A tread pattern, whose ditch area rate is 30% or less, not having a straight ditch in the tyre circumferential direction is arranged on the tread surface of the tire A and the tread pattern, whose ditch area rate is bigger than that of the tyre A, having the straight ditch 7 in the tyre circumferential direction is arranged on the tread surface of the other tire B. |
