This invention relates to a tire, such as a pneumatic all-seasons tire, comprising a tread portion extending in a tire width direction and that is divided between an outer shoulder portion, a central portion and an inner shoulder portion; each of the outer shoulder portion and the inner shoulder portion comprises lateral grooves having an internal end and an external end; wherein at least one of the outer shoulder portion and the inner shoulder portion has at least one lateral groove comprising one or more recesses, wherein the cumulated length of the recesses in the lateral groove ranges from 20% to 60% of the total lateral groove length in the footprint, and wherein one or more recesses are placed at a distance from the internal end of the lateral groove.

A wheel component for sports and racing bicycles with an annular tire and a central tread surface, which in proper use in straight-ahead travel on a plane ground circumferentially makes contact with the surface of the ground, and which opens up a central longitudinal sectional plane. Planar aero elements are configured on the surface of the annular tire, laterally spaced apart from the longitudinal sectional plane. The aero elements are configured as depressions in the surface of the tire and are disposed on the side surfaces and define angular bands rotating on the side surfaces. The surface proportion of the aero elements to the surface of an angular band is larger than 5% and less than 25%.

A motorcycle tire has a tread portion. The tread portion has a ground contact surface curved in an arc shape convex outward in a tire radial direction. The ground contact surface includes a central region and a first outer region. The ground contact surface has oblique grooves each including a portion inclined with respect to a tire circumferential direction. Each of the oblique grooves extends across the central region and the first outer region. Each of the oblique grooves includes a vertical groove portion extending at an angle α of 20 degrees or less with respect to the tire circumferential direction. A minimum distance in a tire axial direction along the ground contact surface between the vertical groove portion and an outer edge of the central region is 30% or less of a maximum width in the tire axial direction of the central region along the ground contact surface.

A pneumatic tire includes shoulder lands and a center land, defined by main grooves on both sides of an equator in a zigzag pattern along a circumferential direction, are defined in a tread. Shoulder lug grooves extending in a width direction are formed in each of the shoulder lands. First and second center lug grooves, which extend from the shoulder lug grooves across each of the main grooves and are inclined at an angle of 45°-70° with respect to the width direction, are disposed in the center land. The first center lug groove terminates at the equator, and the second center lug groove terminates without reaching the equator. The first and second center lug grooves are alternately disposed in the circumferential direction. Connecting grooves inclined in an opposite direction to an inclination direction of the center lug grooves to connect the center lug grooves are formed in the center land.

A tire including a land part partitioned between two main grooves extending in the tire circumferential direction S of the tire and resonators formed in the land part. A resonator has a cavity part separated from the two main grooves and is opened at the surface of the land part, a 1st sipe that is opened at one main groove and the cavity part, and a 2nd sipe that is opened at the other main groove and the cavity part. Depths of the main grooves are 3 mm or more and 6.5 mm or less. A volume value of the cavity part is more than 3 times or more and 5 times or less a sum of the cross-sectional areas of the two main grooves with the land part in between, and lengths of the 1st sipe and the 2nd sipe are 10 mm or more and 25 mm or less.

In a tire, a plurality of outer resonators (25) are formed in an outer land portion (28) partitioned by two outer main grooves (21, 22) and arranged in a tire circumferential direction, a plurality of inner resonators (26) are formed in an inner land portion (29) partitioned by two inner main grooves (23, 24) and arranged in the tire circumferential direction, the outer resonator includes a first vertical groove (31) which extend in the tire circumferential direction, and a first branch groove (32) and a second branch groove (33) which have an inner volume smaller than that of the first vertical groove, extend in the tire width direction from both end portions of the first vertical groove in the tire circumferential direction such that the first branch groove and the second branch groove extend in directions opposite to each other, and are respectively opened to the two outer main grooves, and the inner resonator includes a second vertical groove (36) which extends in the tire circumferential direction, and a third branch groove (37) and a fourth branch groove (38) which have an inner volume smaller than that of the second vertical groove, extend in the tire width direction from the second vertical groove such that the third branch groove and the fourth branch groove extend in directions opposite to each other, and are respectively opened to the two inner main grooves.

A tyre has a tread portion. The tread portion includes a land region defined between a first edge extending in a tyre circumferential direction and a second edge extending in the tyre circumferential direction. The land region is provided with a first lateral groove extending from the first edge toward the second edge and terminating within the land region, a vertical groove connected with the first lateral groove, extending in the tyre circumferential direction, and having both end portions terminating within the land region, and a sipe connected with the vertical groove and extending therefrom toward the second edge.

A pneumatic tire includes a plurality of blocks formed by being divided by a longitudinal groove in a tire width direction and divided by a lateral groove in a tire circumferential direction. The blocks include a first block on the inner side in the tire width direction, a second block on the outer side in the tire width direction, a third block adjacent to the first block in the tire circumferential direction, and a fourth block adjacent to the second block in the tire circumferential direction. The pneumatic tire includes a bridge formed in the longitudinal groove and the lateral groove and coupling the first block, the second block, and the third block, or the third block, the fourth block, and the second block.

A pneumatic tire includes blocks (36 and 41) formed by main grooves (10 and 15) extending in a circumferential direction of the tire and lateral grooves (20 and 25) extending in a tire width direction, and notches (50, 60, and 70) in stepped side end portions of the blocks (36 and 41). The lateral grooves (20 and 25) extend obliquely such that a tire grounding end (E) side is grounded later. Portions adjacent to the notches (50, 60, and 70) on the tire grounding end (E) side of the notches (50, 60, and 70) are protrusions (51, 61, and 71) protruding while forming an acute angle toward a tire equator (C) side.

Provided is a pneumatic tire comprising a tread, sidewalls, a belt, and dimpled patterns, wherein each dimpled pattern is adapted to modify air flow and temperature. The tread defines the outward surface of the tire and extends in a radial direction, a circumferential direction, and a lateral direction. Each sidewall extends radially inwardly along a curved path from the tread to a bead and defines a lateral surface having maximum lateral extent. The belt extends under the tread. Each dimpled pattern is a surface treatment etched from a sidewall maximum lateral extent over a belt edge and onto the tread. Each dimpled pattern surface treatment modifies air flow at 180 mph over the tire to turbulent flow, and reduces steady state operating temperatures of the sidewalls.