diminishes along a first direction in the tyre circumferential direction the second bulge part has a narrow tip shape such that in the tyre tread plan view the size in the tread width direction diminishes along a second direction opposite to the first direction in the tyre circumferential direction a plurality of first bulge parts and second bulge parts are provided at predetermined intervals in the tyre circumferential direction a groove part which extends in the tyre circumferential direction is provided between the first bulge part and the second bulge part which opposes the first bulge part in the tread width direction application_number US 201214234817 A description next a tire pneumatic tire according to an embodiment will be explained with reference to drawings it is noted that in the following description of the drawings the same or similar reference numerals are used to designate the same or similar portions it is appreciated that the drawings are schematically shown and the ratio and the like of each dimension are different from the real ones accordingly specific dimensions and the like should be determined in consideration of the explanation below moreover among the drawings the respective dimensional relations or ratios may differ fig1 is a development plan view illustrating a part of a pneumatic tire 10 according to the present embodiment as illustrated in fig1 on the pneumatic tire 10 a plurality of circumferential grooves 20 extending in a tire circumferential direction d c are formed further the pneumatic tire 10 includes a land portion 30 extending in the tire circumferential direction d.