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Summary:A pneumatic radial tire has a carcass and a tread. The carcass has at least one carcass reinforcing ply and opposing bead portions. Each bead portion has a bead core and a bead apex. The bead apexes in each bead portion have the same radial height (HA), as measured from a bead base line (B). The tire has a bead reinforcing ply, preferably comprising chopped carbon fiber in the amount of 0.5 to 30 parts per hundred rubber, located in only one bead portion of the tire, with the bead reinforcing ply being adjacent to the carcass reinforcing ply.
Bibliography:Application Number: CN20061164201