A wheel for vehicles includes: a rim and a tire mounted on the rim and inflated to an operating pressure; axial end portions of a tread band of the tire radially spaced apart the same distance from a rotation axis of the wheel and a median circumferential line of the tread band axially shifted by a predetermined distance relative to a mid-line plane of the wheel; the wheel mounted on a car with a camber angle substantially zero and with the median circumferential line shifted toward the outside of the car relative to the mid-line plane.

A wheel for vehicles includes: a rim and a tire mounted on the rim and inflated to an operating pressure; axial end portions of a tread band of the tire radially spaced apart the same distance from a rotation axis of the wheel and a median circumferential line of the tread band axially shifted by a predetermined distance relative to a mid-line plane of the wheel; the wheel mounted on a car with a camber angle substantially zero and with the median circumferential line shifted toward the outside of the car relative to the mid-line plane.

A tire comprises a tread portion provided with a first circumferential groove and a second circumferential groove which are disposed on one side and the other side, respectively, of a cambered-tire tread center line. The cambered-tire tread center line is defied by a line extending in the tire circumferential direction, along which a circumferential length of the ground contacting patch of the tire becomes maximum when the tire mounted on a normal rim and inflated to a normal pressure, is placed on a flat horizontal surface at a non-zero camber angle, and loaded with a normal tire load in the vertical direction.

The tire includes a summit surrounded by side portions terminating in beads provided to cooperate with a mounting rim. A carcass reinforcement is surmounted by a summit reinforcement composed of reinforcing plies. When the tire is mounted onto its standard mounting rim and inflated with its nominal pressure, each side portion has an upper side point, a bottom side point, an intermediate side point, an upper side portion, and a bottom side portion. A weight of the bottom side portion on one side portion is at least 15% lighter than a weight of the bottom side portion on another side portion.

The tire includes a summit surrounded by side portions terminating in beads provided to cooperate with a mounting rim. A carcass reinforcement is surmounted by a summit reinforcement composed of reinforcing plies. When the tire is mounted onto its standard mounting rim and inflated with its nominal pressure, each side portion has an upper side point, a bottom side point, an intermediate side point, an upper side portion, and a bottom side portion. A weight of the bottom side portion on one side portion is at least 15% lighter than a weight of the bottom side portion on another side portion.

Method for controlling the symmetry of the footprint area of a tyre miming on a straight trajectory with camber angle different from zero, wherein the method comprises the steps: —reducing the contact pressure of the tyre (2) on the footprint area at an inner shoulder (in case of negative camber) or at an outer shoulder (in case of positive camber); —disposing any medium line (Im) of the tread band (9) placed in correspondence with the footprint area substantially parallel to the ground; the invention also defines a tyre and a wheel for motor-vehicles, wherein the medium line (Im) of the tread hand (9) and the rotation axis (X-X) of the tyre (2) form an angle (a) substantially equal in absolute value to the camber angle (β); the invention also encompasses a process for manufacturing such tyres, wherein a green tyre with symmetric outer profile is deformed during the vulcanising and moulding step until a predetermined angle (a) different from zero is formed between any medium line (Im) of the tread band (9) and the rotation axis (X-X) of the vulcanised tyre (2).

Method for controlling the symmetry of the footprint area of a tyre miming on a straight trajectory with camber angle different from zero, wherein the method comprises the steps: —reducing the contact pressure of the tyre (2) on the footprint area at an inner shoulder (in case of negative camber) or at an outer shoulder (in case of positive camber); —disposing any medium line (Im) of the tread band (9) placed in correspondence with the footprint area substantially parallel to the ground; the invention also defines a tyre and a wheel for motor-vehicles, wherein the medium line (Im) of the tread hand (9) and the rotation axis (X-X) of the tyre (2) form an angle (a) substantially equal in absolute value to the camber angle (β); the invention also encompasses a process for manufacturing such tyres, wherein a green tyre with symmetric outer profile is deformed during the vulcanising and moulding step until a predetermined angle (a) different from zero is formed between any medium line (Im) of the tread band (9) and the rotation axis (X-X) of the vulcanised tyre (2).

A pneumatic tire includes a plurality of side blocks rising from an outer surface of a sidewall portion and defined by a segmentation element in each of side regions adjacent to an outer side in a tire width direction of an outermost end portion in the tire width direction of a tread portion. The number Nout of the side blocks provided in an outer side region that is an outer side with respect to a vehicle when a tire is mounted on the vehicle is smaller than the number Nin of the side blocks provided in an inner side region that is an inner side with respect to the vehicle when the tire is mounted on the vehicle.

A pneumatic tire includes a band-shaped sound absorbing member bonded along a tire circumferential direction to the tire inner surface in a tread portion; at least one full cover layer covering the entire width of belt layers on the outer circumferential side of the belt layers; and a center cover layer disposed on the outer circumferential side of the full cover layer, the center cover layer locally covering the tire lateral direction center region of the belt layers; a width SW of the band-shaped sound absorbing member and a width BW of the belt layers satisfying a relationship SW/BW=0.3 to 0.8, and a width CW of the center cover layer and the width SW of the band-shaped sound absorbing member satisfying the relationship CW/SW=0.05 to 0.35.

A pneumatic tire includes a band-shaped sound absorbing member bonded along a tire circumferential direction to the tire inner surface in a tread portion; at least one full cover layer covering the entire width of belt layers on the outer circumferential side of the belt layers; and a center cover layer disposed on the outer circumferential side of the full cover layer, the center cover layer locally covering the tire lateral direction center region of the belt layers; a width SW of the band-shaped sound absorbing member and a width BW of the belt layers satisfying a relationship SW/BW=0.3 to 0.8, and a width CW of the center cover layer and the width SW of the band-shaped sound absorbing member satisfying the relationship CW/SW=0.05 to 0.35.