Motorcycle tire

A motorcycle tire comprising a tread portion having a designated rolling direction, the tread portion having a tread surface between a pair of tread edges while curving in a convex arc-like manner and having a tread width which is an axial distance between the tread edges being a maximum tire width, and the tread portion including a first region between a tire equator and one of said tread edges and a second region between the tire equator and the other one of said tread edge,

• the tread surface being provided with a plurality of inner inclined grooves and a plurality of outer inclined grooves,
• said inner inclined grooves comprising a plurality of first inner inclined grooves provided in the first region and a plurality of second inner inclined grooves provided in the second region,
• said first inner inclined grooves and said second inner inclined grooves being alternately arranged in a circumferential direction of the tire,
• in each first and second regions, said each inner inclined grooves extending from an axially inner end Ai toward an anti-designated rolling direction to an axially outer end Ao at an angle α in a range of from 0 to 20 degrees with respect to the circumferential direction of the tire, and the axially inner end Ai located in an axial distance of from 0 to 5% a half tread developed-width from the tire equator,
• said outer inclined grooves comprising a plurality of first outer inclined grooves provided in the first region and a plurality of second outer inclined grooves provided in the second region,
• said first outer inclined grooves and said second outer inclined grooves being alternately arranged in the circumferential direction of the tire,
• in each first and second regions, each outer inclined grooves extending from an axially inner end Bi toward the designated rolling direction to an axially outer end Bo, the axially inner end Bi located axially inside than the axially outer end of the inner inclined groove, and the axially outer end Bo located in a distance of from 80 to 95% the half tread developed-width from the tire equator,
• each outer inclined groove having an angle βi at the axially inner end Bi of from 150 to 170 degrees with respect to the circumferential direction of the tire, and
• each outer inclined groove having an angle βo at the axially outer end Bo of from 110 to 130 degrees with respect to the circumferential direction of the tire.