TYRE AND TYRE SET
FIG5 is a cross-sectional view taken along line B-B of FIG4 
FIG5 illustrates a cross-sectional view taken along the line B-B in FIG4. As illustrated in FIG5, in the tyres 1A and 1B according to the embodiment, since the first walls 14 of the shoulder blocks 13 are parallel with the respective tyre meridian sections, the contact area of adjacent first and second tyres 1A and 1B on the shoulder blocks 13 becomes large when two tyres 1A and 1B are stacked. Thus, the tyre set 20 in which a plurality of tyre 1 according to the embodiment is stacked can suppress the collapse of tyres 1A and 1B even when vibration and an external force, e.g., inertial force, acts on the tyre set 20.
cross-sectional view
14
first walls first wall
12
middle blocks middle block
20
tyre set
16
lateral edges
13
shoulder blocks shoulder block
['1. A tyre (1) comprising: a tread portion (2) being provided with blocks (10) each protruding toward a ground contact surface (10a) thereof from a tread bottom surface (9a), and axially spaced side portions (3) extending from the tread portion (2) to bead portions (4); the blocks (10) comprising a pair of rows of shoulder blocks (13) spaced in a tyre circumferential direction, each row being arranged on a respective one of tread edges (Te); in each row, the shoulder blocks (13) each comprising an overhanging portion (13a) located axially outside the corresponding side portion (3); the overhanging portion (13a) comprising a pair of first walls (14) extending in substantially parallel with a tyre meridian cross-section, wherein each first wall (14) has an angle within 5 degrees with respect to the tyre meridian cross-section; and the shoulder blocks (13) having shoulder block lengths (L1) which are lengths in the tyre circumferential direction measured between the pair of first walls (14) along the ground contact surface (10a), wherein the shoulder block lengths (L1) are shorter than gap lengths (L2) which are lengths in the tyre circumferential direction measured on the tread bottom surface (9a) between adjacent shoulder blocks (13), characterized in that the shoulder block lengths (L1) are in a range of from 90% to 98% of the gap lengths (L2).', '5. The tyre (1) according to any one of claims 1 to 4, the blocks (10) further comprising a pair of rows of middle blocks (12) spaced in a tyre circumferential direction and arranged axially inside the pair of rows of the shoulder blocks (13), wherein in axially adjacent rows of the shoulder blocks (13) and the middle blocks (12), the shoulder blocks (13) and the middle blocks (12) are arranged alternately in the tyre circumferential direction, the middle blocks (12) have middle-end positions (12e) located axially outermost on the tread bottom surface (9a), and axial middle-end distances (L4) from the middle-end positions (12e) to the tread edge (Te) located axially outwardly of the middle-end positions (12e) are longer than shoulder block heights (H1) at the middle-end positions (12e).', '8. A tyre set (20) comprising: a first tyre (1A) and a second tyre (1B) each according to any one of claims 1 to 7, when the first tyre (1A) is stacked on the second tyre (1B) such that one of the side portions of the first tyre (1A) lies on one of the side portions of the second tyre (1B), the respective shoulder blocks (13) of the first tyre (1A) are positioned into the respective gaps between adjacent shoulder blocks (13) of the second tyre (1B).']