A tyre having a vehicle installation outer side and a vehicle installation inner side, at least two circumferential grooves (10, 12, 14, 16, 50, 52, 54, 56, 101, 103, 105, 107), and a midpoint (20, 60, 120) which is halfway between the two circumferential grooves (10, 12, 14, 16, 50, 52, 54, 56, 101, 103, 105, 107) which are outermost in the tyre width direction, at least one of the circumferential grooves (10, 12, 50, 52, 101, 103), which is on the vehicle installation inner side with respect to the midpoint, having a plurality of protrusions (30, 32, 70, 72, 111, 113) in the groove arranged alternately along the groove next to each side wall of the groove, wherein the following inequality is met: ∑ k = 1 n Ak AGk − ∑ l = 1 m Bl BGl > 0 where: k denotes a groove on the vehicle installation inner side with respect to the midpoint; n is the number of grooves on the vehicle installation inner side with respect to the midpoint; I denotes a groove on the vehicle installation outer side with respect to the midpoint; m is the number of grooves on the on the vehicle installation outer side with respect to the midpoint; Ak and BI is the area of the protrusion when the groove is viewed in cross-section perpendicular to the longitudinal direction of the groove; and AGk and BGI is the total area of the groove when the groove is viewed in cross-section perpendicular to the longitudinal direction of the groove, the tyre being characterized in that two of the circumferential grooves (10, 12, 101, 103), which are on the vehicle installation inner side with respect to the midpoint, each have a plurality of protrusions in the groove arranged alternately along the groove next to each side wall of the groove, and two of the circumferential grooves (14, 16, 105, 107), which are on the vehicle installation outer side with respect to the midpoint, do not have the protrusions. at least one of the circumferential grooves (10, 12, 50, 52, 101, 103), which is on the vehicle installation inner side with respect to the midpoint, having a plurality of protrusions (30, 32, 70, 72, 111, 113) in the groove arranged alternately along the groove next to each side wall of the groove, wherein the following inequality is met: ∑ k = 1 n Ak AGk − ∑ l = 1 m Bl BGl > 0 where: k denotes a groove on the vehicle installation inner side with respect to the midpoint; n is the number of grooves on the vehicle installation inner side with respect to the midpoint; I denotes a groove on the vehicle installation outer side with respect to the midpoint; m is the number of grooves on the on the vehicle installation outer side with respect to the midpoint; Ak and BI is the area of the protrusion when the groove is viewed in cross-section perpendicular to the longitudinal direction of the groove; and AGk and BGI is the total area of the groove when the groove is viewed in cross-section perpendicular to the longitudinal direction of the groove, the tyre being characterized in that k denotes a groove on the vehicle installation inner side with respect to the midpoint; n is the number of grooves on the vehicle installation inner side with respect to the midpoint; I denotes a groove on the vehicle installation outer side with respect to the midpoint; m is the number of grooves on the on the vehicle installation outer side with respect to the midpoint; Ak and BI is the area of the protrusion when the groove is viewed in cross-section perpendicular to the longitudinal direction of the groove; and AGk and BGI is the total area of the groove when the groove is viewed in cross-section perpendicular to the longitudinal direction of the groove, the tyre being characterized in that