Abstract: The present invention relates to a self-supporting tyre (100) for motor vehicles which comprises sidewall reinforcing inserts (113A, 113B) with different stiffness. In particular, the sidewall reinforcing insert on the side of the tyre most stressed during driving is less rigid than the sidewall reinforcing insert on the less stressed side. The tyre of the invention exhibits a reduced rolling resistance and better comfort in normal driving and an unexpected increase in mileage in run-flat driving.

Abstract: Method (200), and related system (100), for monitoring a status of a tyre (99) fitted on a vehicle, the method (200) comprising: —with said vehicle in motion and said tyre in rotation, acquiring (3) a motion signal representative of a motion of a crown portion (31) of the tyre (99), the motion signal temporally corresponding to a plurality of turns of the tyre (99); —obtaining (4) a frequency spectrum of the motion signal; —determining (11) the status of the tyre (99) based the frequency spectrum, wherein the motion signal is representative of an axial component of the motion of the crown portion (31).

Abstract: Tyre (10) comprising a monitoring device (1) which comprises a housing portion (2) and a base portion (3), the base portion (3) having a coupling surface (4) in single piece intended for fixing the monitoring device to the tyre, wherein the monitoring device (1) comprises an electronic unit (8) housed in the housing portion (2), wherein the monitoring device (1) is fixed to an inner surface (15) of the tyre (10) at a crown portion (16) of the tyre by an adhesive (6) interposed between the coupling surface (4) and the inner surface (15), wherein a first region (12) of the coupling surface (4) is covered by the adhesive (6) and a second region (13) of the coupling surface (4), complementary to the first region (12), is free of adhesive (6), and wherein the second region (13) is contained within a projection (5) of the housing portion (2) onto the coupling surface (4).

Abstract: A pneumatic tyre for a car having a tread, including a central portion disposed astride an equatorial plane and two shoulder portions. The central portion is separated from the tread shoulder portions by two circumferential grooves and at least one circumferential row, included between a first and a second circumferential groove, is present in the central portion. The tread has a hollow/solid ratio lower than 0.28. The circumferential row comprises transverse grooves extending over at least 80% of the width of the circumferential row. Each transverse groove includes a median line having at least one first rectilinear stretch and one curvilinear stretch. The transverse grooves have a smaller width than that of the circumferential grooves.

Abstract: A tire having (i) an asymmetric tread profile with a shoulder drop difference of 0.3 to 0.9; and (ii) an asymmetric tread pattern so as to have a ratio between the inner void/solid ratio and the outer void/solid ratio of 1.1 to 1.50. By the above combination of features, handling and aquaplaning performance is remarkably improved even at high operating speeds without negatively affecting the wear resistance of the tread band.

Abstract: A pneumatic tyre for a car having a tread, including a central portion disposed astride an equatorial plane and two shoulder portions. The central portion is separated from the tread shoulder portions by two circumferential grooves and at least one circumferential row, included between a first and a second circumferential groove, is present in the central portion. The tread has a hollow/solid ratio lower than 0.28. The circumferential row comprises transverse grooves extending over at least 80% of the width of the circumferential row. Each transverse groove includes a median line having at least one first rectilinear stretch and one curvilinear stretch. The transverse grooves have a smaller width than that of the circumferential grooves.

Abstract: A tire having (i) an asymmetric tread profile with a shoulder drop difference of 0.3 to 0.9; and (ii) an asymmetric tread pattern so as to have a ratio between the inner void/solid ratio and the outer void/solid ratio of 1.1 to 1.50. By the above combination of features, handling and aquaplaning performance is remarkably improved even at high operating speeds without negatively affecting the wear resistance of the tread band.