Abstract: A tire for a road vehicle is configured to have a predetermined direction of rotation. The tire includes fins for modifying the vehicle's drag and/or lift. The fins are arranged on a sidewall of the tire and form an angle ? in a projection plane perpendicular to an axis X of the tire, with the angle ? belonging to a domain [?3?/8, ??/12] or a domain [0, +3?/8]. Each fin extends within a range ]Dm, DM[ of distances from the axis X of the tire. A height of each fin varies continuously as a function of a distance from the axis X of the tire, with every point of maximum height of the fin being at a distance from the axis X of the tire that is less than or equal to Dm+0.40 (DM?Dm).

Abstract: A method for determining the aerodynamic moment of resistance Maero-EM of a wheel by calculating the variation with respect to time, of the product of the rotational speed of at least one wheel set in rotation about an axis and of the inertia of the said wheel about the said axis, the wheel being equipped with a device for picking off and recording the numerical values of its rotational speed. The wheel is protected by a removable cap and in is subjected to a flow of air.

Abstract: A method for determining the aerodynamic moment of resistance Maero-EM of a wheel arranged on an axis, by measuring the value of the mechanical power Pm to be applied to the wheel in order to maintain it in rotation at a constant speed ?, the said wheel being equipped with a rotational-drive means and with a device for picking off and/or recording the numerical values of the said mechanical power and those of the rotational speed. The wheel is protected by a removable cap and is subjected to a flow of air.

Abstract: The disclosure relates to a tire made of rubbery material comprising a tread comprising a shoulder region, and a graphic element. The graphic element is recessed into the shoulder region, and comprises a texture that contrasts with this shoulder region . The graphic element may be selected from a group of graphic elements comprising at least letters, numbers and symbols.

Abstract: The aspects disclosed herein relate to a tire composing elastomeric properties. The tire includes a sidewall and a texture. The texture may include a plurality of strands distributed in a graphic element at a density at most of five strands per square millimeter (mm2), each strand having a mean cross section of between 0.0007 mm2 and 0.06 mm2. The texture includes a plurality of substantially mutually parallel lamellae, the spacing of the lamellae being at most 0.5 mm, with, each lamella having a mean width of between 0.03 mm and 0.3 mm. The texture is recessed into the sidewall with the texture defining the graphic element.

Abstract: A tire made of rubber material having a sidewall and a marking. This marking is positioned in a housing recessed into the sidewall. The tire includes a texture having a plurality of strands distributed at a density at least equal to five strands per square millimeter (mm2), each strand having a mean cross section of between 0.0007 mm2 and 0.06 mm2 and/or the texture having a plurality of substantially mutually parallel lamellae, the spacing of the lamellae being at most equal to 0.5 mm, each lamella having a mean width of between 0.03 mm and 0.3 mm. The texture surrounds all or part of the marking in the housing.

Abstract: Tire for a passenger vehicle, including a crown portion on its exterior with a tread, extended laterally by sidewalls terminating in beads to contact with rim parts (J) on which the tire is mounted, each sidewall including an inner wall and an outer wall, at least one of the sidewalls includes a plurality of first sectors and second sectors, formed on the outer wall of a first sidewall portion between the crown portion the axially outermost points when this tire is mounted inflated, wherein the first sectors are completely without raised markings, i.e. raised markings of a height greater than 0.2 mm, whereas the second sectors are provided with raised markings, these raised markings having a height equal to at least 0.2 mm, wherein the first sectors each form an angle equal to at least 20°, and wherein the sum of the angles of said first sectors is equal to at least 120°.

Abstract: A method for determining the aerodynamic moment of resistance Maero-EM of a wheel arranged on an axis, by measuring the value of the mechanical power Pm to be applied to the wheel in order to maintain it in rotation at a constant speed ?, the said wheel being equipped with a rotational-drive means and with a device for picking off and/or recording the numerical values of the said mechanical power and those of the rotational speed. The wheel is protected by a removable cap and is subjected to a flow of air.

Abstract: A method for determining the aerodynamic moment of resistance Maero-EM of a wheel by calculating the variation with respect to time, of the product of the rotational speed of at least one wheel set in rotation about an axis and of the inertia of the said wheel about the said axis, the wheel being equipped with a device for picking off and recording the numerical values of its rotational speed. The wheel is protected by a removable cap and in is subjected to a flow of air.

Abstract: The invention relates to a tyre (10) for a road vehicle, which has a predetermined direction of rotation and comprises fins (16) for modifying the drag and/or lift of the vehicle, arranged on a sidewall (12) of the tyre, forming an angle (?) in a projection plane perpendicular to the axis of the tyre, (?) belonging to the domain [?3?/8, ??/12] or [0, +3?/8]. Each fin (16) extends within a range ]Dm, DM[ of distances from the axis (X) of the tyre, the height of the fin varying continuously as a function of the distance from the axis of revolution (X) of the tyre, while every point of maximum height of the fin is at a distance from the axis (X) of the tyre which is less than or equal to Dm+0.40(DM?Dm).