A TYRE ASSEMBLY FOR OFF-ROAD MOTORCYCLE

摘要

A tyre assembly for off -road motorcycle wheels comprises a tyre including a carcass structure (3), and a tread band (18) including a plurality of blocks (20) circumferentially spaced apart from each other by transverse grooves, and applied at a radially external position relative to the carcass structure, the assembly further comprising a toroidal polymeric foam or mousse (103) disposed at a radially internal position relative to the tyre, a thermally insulating and thermostable polymeric layer (102) having an axial extension equal to at least 60% of the extension of the crown portion of the tread, the thermally insulating polymeric layer being circumferentially disposed on either side of the equatorial plane of the tyre and interposed between the tyre and the foam (103).