A heavy duty tire comprising: a pair of beads; a carcass extending on and between the pair of beads; a pair of sidewalls each located axially outward of the carcass; a pair of chafers each located radially inward of the sidewall and configured to come into contact with a rim; and a tag member including an RFID tag, wherein each of the beads includes a core and an apex located radially outward of the core, the carcass includes a carcass ply, the carcass ply includes a ply body extending between the pair of beads and a pair of turned-up portions each connected to the ply body and turned up around the bead, the rim is a normal rim, a state where the tire is fitted on the rim and an internal pressure of the tire is adjusted to a normal internal pressure is a normal state, and a state where a load equal to 50% of a normal load is applied to the tire in the normal state and the tire is brought into contact with a flat surface is a standard ground-contact state, wherein, in the standard ground-contact state, the RFID tag is located between a radially outer end (PRr) of the rim and the maximum width position (PWs) of the tire in a radial direction, the apex includes an inner apex located radially outward of the core and an outer apex located radially outward of the inner apex, the tag member is in contact with the outer apex on a radially outer side of an end of the turned-up portion, and the RFID tag is located between an outer end of the outer apex and the end of the turned-up portion in the radial direction, characterized in that, in the standard ground-contact state, the RFID tag is located between an axially outer end (PRa) of the rim and a maximum width position (PWs) of the tire in an axial direction, and in that the outer apex is more flexible than the inner apex, a complex elastic modulus of the inner apex being not less than 60 MPa and a complex elastic modulus of the outer apex being not greater than 6 MPa, the complex elastic modulus being measured according to the standards of JIS K6394 at the following measurement conditions: initial strain = 10 %, dynamic strain = ± 1 %, frequency = 10 Hz, mode = stretch mode, and temperature = 70 °C. a pair of beads; a carcass extending on and between the pair of beads; a pair of sidewalls each located axially outward of the carcass; a pair of chafers each located radially inward of the sidewall and configured to come into contact with a rim; and a tag member including an RFID tag, wherein each of the beads includes a core and an apex located radially outward of the core, the carcass includes a carcass ply, the carcass ply includes a ply body extending between the pair of beads and a pair of turned-up portions each connected to the ply body and turned up around the bead, the rim is a normal rim, a state where the tire is fitted on the rim and an internal pressure of the tire is adjusted to a normal internal pressure is a normal state, and a state where a load equal to 50% of a normal load is applied to the tire in the normal state and the tire is brought into contact with a flat surface is a standard ground-contact state, wherein, in the standard ground-contact state, the RFID tag is located between a radially outer end (PRr) of the rim and the maximum width position (PWs) of the tire in a radial direction, the apex includes an inner apex located radially outward of the core and an outer apex located radially outward of the inner apex, the tag member is in contact with the outer apex on a radially outer side of an end of the turned-up portion, and the RFID tag is located between an outer end of the outer apex and the end of the turned-up portion in the radial direction, characterized in that, in the standard ground-contact state, the RFID tag is located between an axially outer end (PRa) of the rim and a maximum width position (PWs) of the tire in an axial direction, and in that the outer apex is more flexible than the inner apex, a complex elastic modulus of the inner apex being not less than 60 MPa and a complex elastic modulus of the outer apex being not greater than 6 MPa, the complex elastic modulus being measured according to the standards of JIS K6394 at the following measurement conditions: initial strain = 10 %, dynamic strain = ± 1 %, frequency = 10 Hz, mode = stretch mode, and temperature = 70 °C.