TYRE WITH ARAMID FIBRE PROTECTIVE CROWN PLY

摘要

The invention concerns a tyre comprising a crown, two sidewalls and two beads, a carcass reinforcement anchored in each of the plies and a crown reinforcement, the crown reinforcement comprising radially, from inside outwards, a working block and a protective block having at least a ply of circumferentially oriented parallel reinforcements. The invention is characterised in that the protective block ply consists of aromatic polyamide reinforcements with modulus less than 1000 cN/tex and toughness higher than 65 cN/tex.