Abstract: A motorcycle tyre for traveling on rough terrain, the tyre includes a tread portion provided with blocks. The at least one of the blocks includes a ground contact surface having a pair of lateral edges extending in a tyre axial direction. The at least one of the blocks is 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. The at least one of the pair of edge-side portions includes 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.

Abstract: A tire includes: a pattern portion, in which plural ridges having ridgelines are arranged adjacent to each other, on a tire surface, the ridgelines including a main body portion and a first extending portion and a second extending portion that extend in different directions from the main body portion in plan view, in which the first extending portion of a ridge and the second extending portion of an adjacent ridge at least partially overlap each other when viewed from a direction orthogonal to an adjacent direction of the ridges, a height of the ridge is from 0.2 mm to 0.5 mm, and ridges adjacent to each other are arranged at a constant pitch of from 0.15 mm to 0.35 mm.