A tire (1, 1', 1", 1′′′) comprising a belt portion and a tread portion (10, 10', 10", 10′′′), wherein the tread portion (10, 10', 10", 10′′′) comprises a tread cap and a tread base and is situated radially outward from the belt portion, wherein the tread portion (10, 10', 10", 10′′′) comprises a radially outer tread layer (30, 32, 34, 35), which is adapted to be ground contacting, and a radially inner tread layer (40, 31, 33, 41, 42, 43) arranged between the radially outer tread layer and the belt portion, wherein the radially outer tread layer (30, 32, 34, 35) is a layer of the tread cap and comprises a first rubber composition having a first shear storage modulus G'1, the radially inner tread layer (40, 31, 33, 41, 42, 43) consists of a second rubber composition having a second shear storage modulus G'2, characterized in that: the second shear storage modulus G'2 is between 3 MPa and 9 MPa higher than the first shear storage modulus G'1, the first shear storage modulus G'1 is within a range of 1 MPa to 3 MPa and the second shear storage modulus G'2 is within a range from 4 MPa to 12 MPa, the first shear storage modulus G'1 and the second shear storage modulus G'2 are determined according to ASTM D5992 at 6% strain, a frequency of 7.8 Hz and 70°C; and in that the radially inner tread layer is a tread base layer (41, 42), or the radially inner tread layer is a tread cap layer (40, 31, 33, 43) wherein the radially inner tread layer has over at least 90% of its axial width a radial thickness ranging from 20% to 80% of the maximum radial thickness of the radially outer tread layer. the radially outer tread layer (30, 32, 34, 35) is a layer of the tread cap and comprises a first rubber composition having a first shear storage modulus G'1, the radially inner tread layer (40, 31, 33, 41, 42, 43) consists of a second rubber composition having a second shear storage modulus G'2, characterized in that: the second shear storage modulus G'2 is between 3 MPa and 9 MPa higher than the first shear storage modulus G'1, the first shear storage modulus G'1 is within a range of 1 MPa to 3 MPa and the second shear storage modulus G'2 is within a range from 4 MPa to 12 MPa, the first shear storage modulus G'1 and the second shear storage modulus G'2 are determined according to ASTM D5992 at 6% strain, a frequency of 7.8 Hz and 70°C; and in that the radially inner tread layer is a tread base layer (41, 42), or the radially inner tread layer is a tread cap layer (40, 31, 33, 43) wherein the radially inner tread layer has over at least 90% of its axial width a radial thickness ranging from 20% to 80% of the maximum radial thickness of the radially outer tread layer. the second shear storage modulus G'2 is between 3 MPa and 9 MPa higher than the first shear storage modulus G'1, the first shear storage modulus G'1 is within a range of 1 MPa to 3 MPa and the second shear storage modulus G'2 is within a range from 4 MPa to 12 MPa, the first shear storage modulus G'1 and the second shear storage modulus G'2 are determined according to ASTM D5992 at 6% strain, a frequency of 7.8 Hz and 70°C; and in that the radially inner tread layer is a tread base layer (41, 42), or the radially inner tread layer is a tread cap layer (40, 31, 33, 43) wherein the radially inner tread layer has over at least 90% of its axial width a radial thickness ranging from 20% to 80% of the maximum radial thickness of the radially outer tread layer.