A motorcycle tire comprising: a tread portion provided with a tread pattern made up of first pattern units and second pattern units alternately arranged in the tire circumferential direction, the first pattern unit being substantially mirror symmetrical with the second pattern unit, each of the first pattern units and the second pattern units comprising a main oblique groove, a first auxiliary oblique groove and a second auxiliary oblique groove, characterized in that the main oblique groove is composed of a steeply-inclined part and a mildly-inclined part with respect to the tire axial direction and formed as a bent groove having a bent position, wherein the steeply-inclined part extends from a start position located on one side of the tire equator (Co) to the bent position located on the other side of the tire equator (Co), while inclining to one tire circumferential direction, and the mildly-inclined part extends from the bent position to the adjacent tread edge, while inclining to said one tire circumferential direction, and a distance (La) between the start position and the adjacent tread edge is in a range of from 20 % to 40 % of a distance (Lo) between the tire equator (Co) and the tread edge, the first auxiliary oblique groove disposed on said one side of the tire equator (Co) and connected to the steeply-inclined part of the main oblique groove at a connection point, the first auxiliary oblique groove composed of a steeply-inclined part and a mildly-inclined part with respect to the tire axial direction and formed as a bent groove having a bent position, wherein the steeply-inclined part extends from the connection point to the bent position, while inclining to said one tire circumferential direction, and the mildly-inclined part extends from the bent position to the adjacent tread edge, while inclining to said one tire circumferential direction, the second auxiliary oblique groove connected to the steeply-inclined part of the main oblique groove at a connection point, the second auxiliary oblique groove composed of a steeply-inclined part and a mildly-inclined part with respect to the tire axial direction and formed as a bent groove having a bent position, wherein the bent position is located on the same side of the tire equator (Co) as the bent position of the first auxiliary oblique groove, the connection point is located on the other side of the tire equator (Co) than the bent position of the second auxiliary oblique groove, the steeply-inclined part extends from the connection point to the bent position, while inclining to said one tire circumferential direction, and the mildly-inclined part extends from the bent position to the adjacent tread edge, while inclining to said one tire circumferential direction. a tread portion provided with a tread pattern made up of first pattern units and second pattern units alternately arranged in the tire circumferential direction, the first pattern unit being substantially mirror symmetrical with the second pattern unit, each of the first pattern units and the second pattern units comprising a main oblique groove, a first auxiliary oblique groove and a second auxiliary oblique groove, characterized in that the main oblique groove is composed of a steeply-inclined part and a mildly-inclined part with respect to the tire axial direction and formed as a bent groove having a bent position,