To prevent the cracking and exfoliation of a side part in a low aspect ratio pneumatic tire.

A turnup end P3 of a carcass 10 is disposed near a belt layer 9, and a radial outer end P4 of a bead filler 7 is disposed on a projecting end level L of a rim protector 18. The side part 4 is provided with a first rubber layer 15C extended radially outward from a bead part 5 so that a radial outer end P2 is disposed near the belt layer 9, and a second rubber layer 17 extended radially inward from a tread rubber layer 16 to cover the lateral outside of the first rubber layer 15C and to allow a radial inner end P1 to reach the bead part 5.