A tire comprising: a tread portion having a designated installing direction to a vehicle, the tread portion comprising an outboard tread edge (To) to be positioned in an outboard of a vehicle when being installed to the vehicle, an inboard tread edge (Ti) to be positioned in an inboard of a vehicle when being installed to the vehicle, first to third main grooves (11, 12, 13) continuously extending in a tire circumferential direction and land portions divided by the first to third main grooves (11, 12, 13); characterised by, the first main groove having a groove centerline being arranged on a side of the inboard tread edge (Ti) with respect to a tire equator, the groove centerline being located at a distance L1 in a tire axial direction from the tire equator in a range of from 5% to 25% of a tread half width (TWh); the second main groove being arranged between the first main groove and the inboard tread edge (Ti), the second main groove having a groove centerline located at a distance L2 in the tire axial direction from the tire equator in a range of from 35% to 65% of the tread half width (TWh); the third main groove being arranged between the tire equator and the outboard tread edge (To), the third main groove having a groove centerline located at a distance L3 in the tire axial direction from the tire equator in a range of from 25% to 55% of the tread half width (TWh), a groove width of the third main groove being smaller than groove widths of the first main groove and the second main groove; and the land portions comprising an inboard crown land portion defined between the first main groove and the second main groove, an outboard crown land portion defined between the first main groove and the third main groove, and having a width in the tire axial direction greater than that of the inboard crown land portion, an inboard shoulder land portion defined between the second main groove and the inboard tread edge (Ti) and an outboard shoulder land portion defined between the third main groove and the outboard tread edge (To); wherein each of the outboard crown land portion, the inboard shoulder land portion and the outboard shoulder land portion is provided with closed grooves closed in each of the outboard crown land portion, the inboard shoulder land portion and the outboard shoulder land portion. a tread portion having a designated installing direction to a vehicle, the tread portion comprising an outboard tread edge (To) to be positioned in an outboard of a vehicle when being installed to the vehicle, an inboard tread edge (Ti) to be positioned in an inboard of a vehicle when being installed to the vehicle, first to third main grooves (11, 12, 13) continuously extending in a tire circumferential direction and land portions divided by the first to third main grooves (11, 12, 13); characterised by, the first main groove having a groove centerline being arranged on a side of the inboard tread edge (Ti) with respect to a tire equator, the groove centerline being located at a distance L1 in a tire axial direction from the tire equator in a range of from 5% to 25% of a tread half width (TWh); the second main groove being arranged between the first main groove and the inboard tread edge (Ti), the second main groove having a groove centerline located at a distance L2 in the tire axial direction from the tire equator in a range of from 35% to 65% of the tread half width (TWh); the third main groove being arranged between the tire equator and the outboard tread edge (To), the third main groove having a groove centerline located at a distance L3 in the tire axial direction from the tire equator in a range of from 25% to 55% of the tread half width (TWh), a groove width of the third main groove being smaller than groove widths of the first main groove and the second main groove; and the land portions comprising an inboard crown land portion defined between the first main groove and the second main groove, an outboard crown land portion defined between the first main groove and the third main groove, and having a width in the tire axial direction greater than that of the inboard crown land portion, an inboard shoulder land portion defined between the second main groove and the inboard tread edge (Ti) and an outboard shoulder land portion defined between the third main groove and the outboard tread edge (To); wherein an inboard crown land portion defined between the first main groove and the second main groove, an outboard crown land portion defined between the first main groove and the third main groove, and having a width in the tire axial direction greater than that of the inboard crown land portion, an inboard shoulder land portion defined between the second main groove and the inboard tread edge (Ti) and an outboard shoulder land portion defined between the third main groove and the outboard tread edge (To); wherein each of the outboard crown land portion, the inboard shoulder land portion and the outboard shoulder land portion is provided with closed grooves closed in each of the outboard crown land portion, the inboard shoulder land portion and the outboard shoulder land portion.