FIELD: tyre industry. SUBSTANCE: casing has beads, each featuring following characteristics: bead-forming ring is replaced by ring member whose breaking strength is considerably lower than that of bead-forming ring in tyre 175/70R-13. At least two adjacent layers are in contact or are arranged close to said ring member. Breaking strength at extension of set of reinforcement layers is at least equal to that of bead-forming rings in tyre 175/70R-13. Carcass layer is turned over ring member. Outer surface of bead includes rubber with elasticity loss modulus "G" less than I MPa, and rubber whose thickness does not exceed 2 mm. Manufacture of casing is simplified. EFFECT: reduced weight and increased wear resistance of tyre casing. 14 cl, 5 dwg
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