| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a precure tread and a retreated tire using its precure tread, without reducing durability of the retreated tire manufactured by a precure system. Ž<P>SOLUTION: This precure tread forms a recessed part 7 on an inner surface 6 corresponding to a groove part 3 of the precure tread 1. The depth of the recessed part 7 is set to 0.05-0.15 time of the depth of the groove part 3, and a width of the recessed part is set to 0.8-1.2 times of a groove width in a 50% depth position of the groove part. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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