A tire for karts, the tire comprising: a tread configured to come into contact with a road surface; a carcass having a bias structure and located radially inward of the tread; and a reinforcing layer located radially inward of the tread and stacked on a radially outer side of the carcass, wherein a ground-contact surface obtained by bringing the tire into contact with a planar road surface with a maximum load from an actual vehicle being applied to the tire in a state where the tire is mounted to a normal rim, an internal pressure of the tire is adjusted to a normal internal pressure, and a camber angle of the tire is set to 0 degrees, is a reference ground-contact surface, a position, on an outer surface of the tread, that corresponds to an axially outer end of the reference ground-contact surface is a reference ground-contact end, out of both ends of the tread, an end located on one side in an axial direction is a first end, and an end located on another side in the axial direction is a second end, the reinforcing layer is located between an equatorial plane and the first end of the tread, an inner end of the reinforcing layer is located axially inward of the reference ground-contact end, and the reinforcing layer includes a large number of reinforcing cords aligned in a circumferential direction, the carcass includes at least two carcass plies, each carcass ply includes a large number of aligned carcass cords, characterized in that an angle (γ) between each reinforcing cord and each carcass cord included in the carcass ply on which the reinforcing layer is stacked, is not larger than 10 degrees. a tread configured to come into contact with a road surface; a carcass having a bias structure and located radially inward of the tread; and a reinforcing layer located radially inward of the tread and stacked on a radially outer side of the carcass, wherein a ground-contact surface obtained by bringing the tire into contact with a planar road surface with a maximum load from an actual vehicle being applied to the tire in a state where the tire is mounted to a normal rim, an internal pressure of the tire is adjusted to a normal internal pressure, and a camber angle of the tire is set to 0 degrees, is a reference ground-contact surface, a position, on an outer surface of the tread, that corresponds to an axially outer end of the reference ground-contact surface is a reference ground-contact end, out of both ends of the tread, an end located on one side in an axial direction is a first end, and an end located on another side in the axial direction is a second end, the reinforcing layer is located between an equatorial plane and the first end of the tread, an inner end of the reinforcing layer is located axially inward of the reference ground-contact end, and the reinforcing layer includes a large number of reinforcing cords aligned in a circumferential direction, the carcass includes at least two carcass plies, each carcass ply includes a large number of aligned carcass cords, characterized in that an angle (γ) between each reinforcing cord and each carcass cord included in the carcass ply on which the reinforcing layer is stacked, is not larger than 10 degrees.