A tire which includes a carcass ply and a band ply for reinforcing the
carcass ply, the carcass ply having an inner ply and an outer ply which
are provided in a radial direction, the inner ply being wound from an
inside toward an outside in the axial direction of a bead core to
constitute a fold-back portion and the outer ply being provided to cover
the inner ply. A width (JW) of the band ply is set to be 80% to 98% of a
tread width (TW) and an overlap dimension (LW) of the fold-back portion
and the band ply is set to be 15% to 35% of the width (JW) of the band
ply.