Abstract: Agricultural vehicle tire having tread (1) with bearing surface (10) on which main lugs (3) and shorter secondary lugs (3) are formed on each side of the equatorial mid-plane (XX?), each secondary lug (3) interposed between two main lugs (2). The main lugs (2) and secondary lugs (3) make up, in the radial direction, a lens (21, 31) of a first material, each lens (21, 31) surmounted by a second material extending to the contact face of the main lugs and the secondary lugs. The viscous modulus G?1 of the first material is at most 60% of the viscous modulus G?2 of the second material. The complex modulus G?1 of the first material differs from the complex modulus G?2 of the second material, the difference between these complex moduli being at most 30% of the complex modulus G?2 of the second material.

Abstract: Tire tread with main lugs extending from a tread edge to the equatorial mid-plane on each side of which are a plurality of secondary lugs (4) extending over 40% to 60% of the tread half-width, each secondary lug (4) having a width 20% to 40% of the shortest distance between two main lugs (3). Each main lug (3) comprises, on its trailing lateral face (32), a widened portion (320) of width D1 extending over an axial distance from a tread edge and being joined to the main lug by end face (321) inclined at an angle B1 between 18 degrees and 25 degrees to the circumferential direction. Each secondary lug (4) has end face (43) inclined at an angle S1 with the same orientation as angle B1 with respect to the circumferential direction, angle S1 being between 18 degrees and 25 degrees.

Abstract: Agricultural vehicle tire having tread (1) with bearing surface (10) on which main lugs (3) and shorter secondary lugs (3) are formed on each side of the equatorial mid-plane (XX?), each secondary lug (3) interposed between two main lugs (2). The main lugs (2) and secondary lugs (3) make up, in the radial direction, a lens (21, 31) of a first material, each lens (21, 31) surmounted by a second material extending to the contact face of the main lugs and the secondary lugs. The viscous modulus G?1 of the first material is at most 60% of the viscous modulus G?2 of the second material. The complex modulus G*1 of the first material differs from the complex modulus G*2 of the second material, the difference between these complex moduli being at most 30% of the complex modulus G*2 of the second material.

Abstract: Tire tread with main lugs extending from a tread edge to the equatorial mid-plane on each side of which are a plurality of secondary lugs (4) extending over 40% to 60% of the tread half-width, each secondary lug (4) having a width 20% to 40% of the shortest distance between two main lugs (3). Each main lug (3) comprises, on its trailing lateral face (32), a widened portion (320) of width D1 extending over an axial distance from a tread edge and being joined to the main lug by end face (321) inclined at an angle B1 between 18 degrees and 25 degrees to the circumferential direction. Each secondary lug (4) has end face (43) inclined at an angle 51 with the same orientation as angle B1 with respect to the circumferential direction, angle 51 being between 18 degrees and 25 degrees.

Abstract: Tire (1) for a motorized two-wheeled vehicle of the motorbike type. A good compromise between the stability of the motorbike in a straight line at high speed and the stability of the motorbike in a curved path with a high camber angle is achieved with reinforcers of a first carcass layer (61) that form, with the circumferential direction (XX?), an angle (A1) at most equal to 75°, the reinforcers of a second carcass layer (62) form, with the circumferential direction, an angle (A2) at least equal to 80° and at most equal to 90°, the difference between the angles (A1, A2) of the respective reinforcers of the first and second carcass layers (61, 62) is at least equal to 10° and at most equal to 20° and the angles (A1, A2) of the respective reinforcers of the first and second carcass layers (61, 62) are oriented in the same direction.