| 摘要 |
PURPOSE: To provide a tire for a heavy load, which can be suitably used as an all weather tire, and by which wear resistance and biased wear resistance can be heightened while keeping the on-ice and snow performance. CONSTITUTION: A tread grounding surface S is divided into a central grounding surface area S1 and a shoulder grounding surface area S2 on the side of the above by main longitudinal grooves G, G on both sides of a tire equator C, and the distance L from the tire equator C of the groove center of the main longitudinal groove G is 0.25-0.40 times as large as the tread grounding surface width SW. The central grounding area S1 is divided into blocks by a longitudinal fine groove (g) and a lateral fine groove (y) which have a width 0.10 to 0.60 times as large as the groove width WG of the main longitudinal groove G. |
