A tyre having a vehicle installation outer side and a vehicle installation inner side, at least two circumferential grooves , and a midpoint which is halfway between the two circumferential grooves which are outermost in the tyre width direction, at least one of the circumferential grooves , which is on the vehicle installation inner side with respect to the midpoint, having a plurality of protrusions 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 , 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 , 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 , which is on the vehicle installation inner side with respect to the midpoint, having a plurality of protrusions 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 <EOS>