Patent ID: 8794277

Claim:
A pneumatic tire for motorcycle including a tread portion, a pair of sidewall portions connected to both sides of the tread portion and a pair of bead portions individually connected to the pair of sidewall portions, wherein the tire tread portion has a tread pattern having plural kinds of transverse grooves ( 1 - 9 ), wherein, when quarter of the tread width from the tire center portion is set as a tire middle portion M, transverse grooves ( 1 - 7 , 9 ) of said plural kind of transverse grooves ( 1 - 9 ) arranged stretching across the tire middle portion M are formed such that the groove depth of the transverse grooves ( 1 - 7 , 9 ) varies in the tire width direction and is the deepest at the tire middle portion M, so that when the groove depth at the Center portion C is set to dc, the groove depth at the middle portion M is set to d M and groove depth at the tread end TE is set to d TE , d M >dc and d M >d TE are satisfied and another transverse groove ( 8 ) of said plural kind of transverse grooves ( 1 - 9 ) having a disconnected portion on the tire middle portion M is formed, wherein said disconnected portion extends to the tread surface and separates one groove part of said another transverse groove ( 8 ) and another groove part of said another transverse groove ( 8 ), each of said one groove part and another groove part having a depth becoming deeper toward said disconnected portion.