A tire comprising a tread portion comprising five land regions including a center land region arranged on a tire equator (C) and divided by four main grooves extending continuously in a tire circumferential direction including a first center main groove and a first shoulder main groove arranged between a tire equator (C) and a first tread edge (Te1) and a second center main groove and a second shoulder main groove arranged between the tire equator (C) and a second tread edge (Te2), wherein the center land region is divided in a plurality of center blocks by penetrating sipes crossing the center land region , each of the center blocks includes a first center lateral groove , a first center closed sipe , a second center lateral groove , and a second center closed sipe , the first center lateral groove extends from a first side edge (E1) arranged on one side in a tire axial direction of the center land region and terminates within the center block , the first center closed sipe extends from the first side edge (E1) and terminates within the center block , the second center lateral groove extends from a second side edge (E2) arranged on the other side in the tire axial direction of the center land region , terminates within the center block , and is opposed to the first center closed sipe in the tire axial direction, the second center closed sipe extends from the second side edge (E2), terminates within the center block , and is opposed to the first center lateral groove in the tire axial direction, characterized in that a length (LA) of the first center lateral groove is not more than half of an extended length (LA0) obtained by extending the first center lateral groove to the second side edge (E2), a length (LB) of the second center lateral groove is not more than half of an extended length (LB0) obtained by extending the second center lateral groove to the first side edge (E1), a length (Lb) of the first center closed sipe is in a range of from one third to two thirds of an extended length (Lb0) obtained by extending the first center closed sipe to the second side edge (E2), a length (La) of the second center closed sipe is in a range of from one third to two thirds of an extended length (La0) obtained by extending the second center closed sipe to the first side edge (E1), the length (LA) is smaller than the length (La), a sum (LA + La) is smaller than the extended length (LAO), the length (LB) is smaller than the length (Lb), a sum (LB + Lb) is smaller than the extended length (LB0), each of the center blocks includes a high rigidity region (Y) defined between a first imaginary line (y1) and a second imaginary line (y2) and extends continuously and straight between a pair of the penetrating sipes , the first imaginary line (y1) passes through a terminating end (EA) of the first center lateral groove and a terminating end (Eb) of the first center closed sipe , the second imaginary line (y2) passes through a terminating end (EB) of the second center lateral groove and a terminating end (Ea) of the second center closed sipe , the high rigidity region (Y) is provided with no grooves and sipes, and the high rigidity region (Y) is inclined in a direction different from the first center lateral groove and the second center lateral groove with respect to the tire axial direction. <EOS>