FIELD: motor car construction.
SUBSTANCE: claimed tire comprises tread rubber of multiply structure. This tire consists of tread rubber, compression rubber ply and four plies of tread rubber. The latter are arranged radially inside the tread rubber wherein radially outer side of transverse side edge of the breaker widest ply radially remotest from the ply centre is coated with the rubber reinforcing ply. It terminates at treat rubber radially inner side not reaching the tire equatorial surface. In terms of Young rebound modulus the condition is satisfied in compliance with which the reinforcing rubber ratio is smaller than that of compression ply rubber.
EFFECT: decreased probability of crack formation, efficient prevention of heat generation by tread rubber.
8 cl, 6 dwg
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