| 摘要 |
A tire having the critical wear indicator is provided that the indicating agent informing the replacement time of tire is emitted when the tread of tire is worn out. A tire having the critical wear indicator comprises a compression body(110) being adapted on the groove(2) of tire, a supporting member case(201) in which an indicating agent(401) indicating the critical wear of tire is filled, a separator film(301) interposed between the compression body and supporting member case. The compression body comprises a fixing unit and a breaking case member. The breaking case member is protruded in order to break the supporting member case.
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