A tire (1) comprising a tread (8), this tread comprising at least one channel (2), at least one wear indicator (3) disposed on the bottom of the channel (2), the wear indicator comprising a contact face (7) intended to come into contact with a road surface when the tire reaches a wear limit, the channel (2) comprising a texture (4) surrounding the wear indicator (3) and contrasting with the contact face (7) of the wear indicator.

An object is to, in an aircraft tire, promote heat dissipation from circumferential direction grooves of a tread and improve durability of the tire. Plural circumferential direction grooves (central side circumferential direction grooves (14), edge portion side circumferential direction grooves (16)) that extend in a tire circumferential direction are formed in a tread (12). In a tire circumferential direction cross-section, a groove bottom (18) of at least one of the circumferential direction grooves has a wave shape having amplitude in a tire radial direction.

A tire tread is provided having a layered design that includes bridged and unbridged circumferential grooves during earlier stages of tread life while transverse and unbridged circumferential grooves are provided at later stages of tread life. Together, the combination of grooves can provide desired wet adherence performance without unacceptable compromises of tread wear and/or rolling resistance. Pockets can also be provided at the end of the transverse grooves to increase the volume available for receipt of water during wet traction.

A tread (12) for a tire (10) which has a tread surface intended to contact a road surface during running. The tread (12) has at least one cavity opening onto the tread surface when new, called external cavity (14), which has length L, width W and central plane P. The external cavity (14) has bottom (16) and at least two opposite lateral walls (18a, 18b) extending from bottom (16) and a mechanism (20) for ejecting stones during running, which has two protuberances (22a, 22b) from bottom (16) of external cavity, which are disposed at least partially opposite one another at a distance d. Each protuberance (22a, 22b) is inclined respectively from a lateral wall (18a, 18b) of the external cavity (14) towards the central plane P. The distance d between the two protuberances (22a, 22b) is less than or equal to 10% of width W of external cavity (14).

An object of the present invention is to provide a pneumatic tire capable of significantly increasing the possibility that the tire can be recycled as a base tire for a retreaded tire without so much sacrificing a product life of the tire prior to retreading. Specifically, the present inventions provides a pneumatic tire 1 having a tread portion 2, plural tread grooves including a first tread groove 5 and a second tread groove 15 formed in the tread portion, and a first bottom-up portion 10 with a top surface 10a as a tread wear indicator, the first bottom-up portion being provided at a groove bottom 5b of the first tread groove 5 such that a distance measured in the tire radial direction from an opening end position 5a of the first tread groove to the top surface 10a is x1, comprising: a second bottom-up portion 20 with a top surface 20a as a retread indicator, the second bottom-up portion being provided at a groove bottom 15b of the second tread groove 15 formed in the central region 3 of the tread portion 2 such that a distance measured in the tire radial direction from an opening end position 15a of the second tread groove to the top surface 20a is x2 shorter than said x1.

Various embodiments of a tire traction element are provided. In one embodiment, a tire traction element is oriented in a circumferential groove of a tire to provide improved snow and/or mud traction. In one embodiment, a tire for a vehicle is provided, comprising: a tread having a circumferential direction, the tread having at least one circumferential groove which extends in the circumferential direction, the at least one circumferential groove having a groove base, and at least one groove sidewall; a plurality of traction elements in the circumferential groove connected to the at least one groove sidewall and the groove base; wherein at least one of the traction elements has a plurality of indentations formed on a radially outermost edge between the base portion and the at least one sidewall portion; and wherein the radially outermost edge has an angle of inclination θ relative to the radial direction.

A method of manufacturing a tread band includes providing a mold having one or more protrusions extending outward in a first direction away from a bottom surface of the mold. At least a first one of the protrusions includes a tip feature extending outward in the first direction. Rubber material is introduced into the mold. A first surface of the rubber material opposite the bottom surface covers the tip feature. The rubber material is compressed into the mold. The compressed rubber material covers the tip feature. The mold is released from the rubber material to form a tread band. The tread band has one or more grooves in a second surface opposite the first surface. The one or more grooves correspond to the one or more protrusions in the mold. A first groove corresponding to the first protrusion includes a vent corresponding to the tip feature in the mold.

Various embodiments of a tire having grooves comprising sipes or other cross-groove negative geometry are disclosed.

An off-road tread profile with radially elevated profile elements, which are separated by circumferential channels, and with transversely running channels which open into circumferential channels, wherein the circumferential channels are formed, along their extent over the circumference of the tire, with a varied axial inclination, wherein, in the channel base of a circumferential channel, elevated stone deflectors are formed so as to be free from contact with the channel walls, which stone deflectors are formed from a cylindrical or frustoconical central body with maximum diameter D, the cylinder or cone axis of which is oriented in the radial direction, and from in each case one web-like body situated in front of the body in the extent direction of the circumferential channel and one web-like body situated behind, wherein the two web-like bodies are each formed so as to extend from the shell surface of the central body so as to be oriented parallel to the extent direction of the circumferential channel and point radially away from the central body and with a maximum width b, where (0.5 D)≥b≥1 mm, wherein central bodies are positioned in each case exclusively in circumferential extent regions of opening-in points of at least one transversely running channel into the circumferential channel.

A tire has a lug that forms a contact patch surface, and a recessed region that extends along a prescribed direction and that is recessed relative to the contact patch surface. The recessed region has a first vertical face that that forms a first edge between the first vertical face and the contact patch surface, and a planar base that extends in a width direction of the recessed region which is perpendicular to the prescribed direction. The planar base has at least two planar regions having mutually different heights and arrayed along the prescribed direction. The recessed region further has a second vertical face that connects the two planar regions and that forms a third edge between the second vertical face and a higher one of the planar regions. The third edge is inclined with respect to both a tire width direction and a tire circumferential direction.