A motorcycle tire comprising: a tread portion comprising a ground contact surface curved in an arc shape manner to protrude radially outwardly, a first tread edge (Tel) and a tire equator, the tread portion provided with inclined main grooves arranged between the tire equator and the first tread edge (Tel) and sub-grooves smaller than the inclined main grooves in groove width; the inclined main grooves comprising inner main grooves each extending from a first end located on the tire equator side to a second end located on the first tread edge (Tel) side with an inclination with respect to a tire circumferential direction, wherein no other grooves are provided between the first end of each inner main groove and the tire equator; and the sub-grooves comprising first sub-grooves extending from the inner main grooves toward the tire equator with an opposite inclination direction to the inner main grooves with respect to the tire circumferential direction and terminating on the tire equator side without being communicated with any other grooves, characterized in that the tread portion has a designated rotation direction, and the inner main grooves each extend from the first end forwardly in the rotation direction toward the first tread edge (Tel), wherein the first sub-grooves include first portions extending from first ends located on the tire equator side, and second portions connected to the first portions and inclined at an angle (θ7) greater than the angle (θ6) of the first portions with respect to the circumferential direction; and the sub-grooves comprise second sub-grooves extending from the inner main grooves toward the first tread edge (Tel) with a same inclination direction as the second portions with respect to the tire circumferential direction. a tread portion comprising a ground contact surface curved in an arc shape manner to protrude radially outwardly, a first tread edge (Tel) and a tire equator, the tread portion provided with inclined main grooves arranged between the tire equator and the first tread edge (Tel) and sub-grooves smaller than the inclined main grooves in groove width; the inclined main grooves comprising inner main grooves each extending from a first end located on the tire equator side to a second end located on the first tread edge (Tel) side with an inclination with respect to a tire circumferential direction, wherein no other grooves are provided between the first end of each inner main groove and the tire equator; and the sub-grooves comprising first sub-grooves extending from the inner main grooves toward the tire equator with an opposite inclination direction to the inner main grooves with respect to the tire circumferential direction and terminating on the tire equator side without being communicated with any other grooves, characterized in that the tread portion has a designated rotation direction, and the inner main grooves each extend from the first end forwardly in the rotation direction toward the first tread edge (Tel), wherein the first sub-grooves include first portions extending from first ends located on the tire equator side, and second portions connected to the first portions and inclined at an angle (θ7) greater than the angle (θ6) of the first portions with respect to the circumferential direction; and the sub-grooves comprise second sub-grooves extending from the inner main grooves toward the first tread edge (Tel) with a same inclination direction as the second portions with respect to the tire circumferential direction.