Pneumatic tire with asymmetric bead reinforcement

摘要

A pneumatic radial tire has a carcass and a tread (10). The carcass has at least one carcass reinforcing ply (12) and opposing bead portions. Each bead portion has a bead core and a bead apex (24). The apexes (24) in each bead portion (14) have the same radial height (HA), as measured from a bead base line (B). The tire has a bead reinforcing ply (26) comprising aramid fiber reinforcing cords located in only one bead portion (14) of the tire, with the bead reinforcing ply (26) being adjacent to the carcass reinforcing ply (12).