Motorcycle tire for traveling on rough terrain

A motorcycle tyre for traveling on rough terrain, the tyre comprising:

• a tread portion being provided with blocks;
• at least one of the blocks comprising a ground contact surface having a pair of lateral edges extending in a tyre axial direction, the at least one of the blocks provided with a pair of lateral narrow grooves extending in the tyre axial direction on the ground contact surface to form a pair of edge-side portions defined between the pair of lateral narrow grooves and the pair of lateral edges;
• and
• at least one of the pair of edge-side portions comprising a neck portion having a minimum circumferential length thereof, wherein a circumferential length of the at least one of the pair of edge-side portions increases toward axially both sides from the neck portion,
• wherein the ground contact surface has a pair of longitudinal edges connecting the pair of lateral edges, the pair of lateral narrow grooves extends from one of the pair of longitudinal edges and terminating at inner ends thereof located within the ground contact surface, and the ground contact surface is provided with a longitudinal narrow groove connecting the inner ends of the pair of lateral narrow grooves.