A tire 2 comprises a tread 4, a pair of sidewalls 6 extended almost inward
in a radial direction from an end 18 of the tread 4, a pair of bead cores
8 positioned on an inside in the radial direction of the sidewalls 6, and
a carcass 10 laid between both of the bead cores 8 along insides of the
tread 4 and the sidewalls 6. The carcass 10 includes a carcass ply 20.
The carcass ply 20 is turned up around the bead core 8. The sidewall 6
has a lower layer 34 positioned on an outside in an axial direction of
the carcass ply 20 and an upper layer 36 positioned on an outside in the
radial direction of the lower layer 34. The upper layer 36 has a hardness
which is equal to or higher than 50 and is equal to or lower than 70. The
lower layer 34 has a hardness which is equal to or higher than 70 and is
equal to or lower than 100.