A pneumatic tire including a carcass containing a ply of cords defining the
innermost reinforcing cord layer extending between bead portions, and an
airtight layer disposed inside the cords of the carcass ply along the
inner surface of the tire, covering substantially the entire inner surface
of the tire, wherein the airtight layer is made of air-impermeable rubber
including at least 10 weight % of halogenated butyl rubber and/or
halogenated isobutylene-paramethyl styrene copolymer in its rubber base,
and the thickness of the airtight layer measured from the inner surface of
the tire to the cords of the carcass ply is in a range of from 0.2 to 0.7
mm.
