TYRE

Tyre (1) comprising a tread portion (2) comprising a first tread edge (Te1) and a second tread edge (Te2), a circumferential crown groove (3) , a first land portion (5) defined between the first tread edge (Te1) and the crown groove (3), a second land portion (6) extending from the crown groove (3) towards the second tread edge (Te2),wherein the first land portion (5) is provided with a plurality of first lateral grooves (8) connected to the crown groove (3) and extending from the crown groove (3) in the direction to the first tread edge (Te1),the second land portion (6) is provided with a plurality of second lateral grooves (9) connected to the crown groove (3) and extending from the crown groove (3) in the direction to the second tread edge (Te2),the first land portion (5) is divided into a plurality of first blocks (10) by the crown groove (3) and the plurality of first lateral grooves (8),the second land portion (6) is divided into a plurality of second blocks (20) by the crown groove (3) and the plurality of second lateral grooves (9),each of the first blocks (10) has a first edge (11) and a second edge (12) located at the intersections of the crown groove (3) and the first lateral grooves (8) defining the respective block, and a lateral wall (15) extending from the first edge (11) to the second edge (12) and forming part of a first lateral wall (3A) of the crown groove (3),each of the second blocks (20) has a first edge (21) and a second edge (22) located at the intersections of the crown groove (3) and the second lateral grooves (9) defining the respective block, and a lateral wall (25) extending from the first edge (21) to the second edge (22) and forming part of a second lateral wall (3B) of the crown groove (3), an angle (α) between the first lateral wall (3A) of the crown groove (3) and the first lateral groove (8) at each of the first edges (11 ) of the first blocks (10) is an acute angle, an angle (γ) between the second lateral wall (3B) of the crown groove (3) and the second lateral groove (9) at each of the first edges (21) of the second blocks (20) is an obtuse angle,the first edge (11) of each of the first blocks (10) has a larger axial distance from the first tread edge (Te1) than the second edge (12) of the respective first block (10), and the first edge (21) of each of the second blocks (20) has a larger axial distance from the second tread edge (Te2) than the second edge (22) of the respective second block (20),wherein, in particular,