To provide a tire having tearing strength that a tire component is hardly cut into a small piece or in a lump-form state without substantially exercising an influence on the mechanical and wear property of a tire component.

A tire having this wearing strength contains a vulcanized elastomer and at least one kind of a component containing approximate 35 pts.wt., based on 100 pts.wt. rubber, polyorefin functionalized. A substance containing one or more a functional group and derived from maleic acid anhydride, acryl acid, and epoxide is contained as polyorefin functionalized, and especially a substance derived from maleic acid anhydride is preferable.