Bead protectors fittable to an opposed pair of tire bead portions are made of a thermoplastic resin. Each bead protector comprises a tubular portion fittable in the bead portion and a flange portion extending from the tubular portion via a curved portion and fittable to the outer side surface of the bead portion. The bead protector is integrally molded in an L-shaped radial cross section. Each of fastening bands comprises a stretchable portion and hooked plate-like metal members. When fitted to the tire bead portions, the bead protectors are interconnected by the fastening bands and elastically pulled toward each other axially of the tire by the stretchable portions, with the hooks in engagement with projections on the flange portions.