A friction-roller-type reduction gear comprising: a sun roller arranged concentrically with an input shaft; a ring roller arranged concentrically with the sun roller at an outer periphery-side of the sun roller and coupled to an output shaft; a plurality of intermediate rollers configured to rolling-contact an outer peripheral surface of the sun roller and an inner peripheral surface of the ring roller; a plurality of pivot holders each of which is provided for each of the plurality of intermediate rollers and is configured to support a rotational shaft of the intermediate roller; a carrier configured to support the plurality of pivot holders, respectively, and a loading cam mechanism configured to apply a pressing force, which is proportional to a magnitude of transmission torque to be applied to rolling-contact surfaces between respective rollers of the sun roller, the ring roller and the intermediate rollers, to the rolling-contact surfaces, wherein each of the pivot holders comprises: a pair of bearing parts configured to support the rotational shaft of the intermediate roller, and a bridging part configured to integrally couple the bearing parts, and wherein the carrier has holder support parts configured to rotatably support the bearing parts, characterized in that the pair of bearing parts have a pivot center (Oos) at an eccentric position from a center (O R) of the rotational shaft, the eccentric position being provided on a side of the center (O R) of the rotational shaft where the bridging part is located, that an interaxial distance (ros) between the pivot center (Oos) of the bearing part and the center (O R) of the rotational shaft is equal to or smaller than a maximum radius of an outer diameter of the intermediate roller, that the pivot center (Oos) is located on an applying line (Lc) of a torque reaction force of transmission torque to be applied to the pivot holder, the applying line (Lc) being parallel to a tangential line (La) tangential at a contact point (Pa) of the sun roller and the intermediate roller, and that the interaxial distance (r os) between the pivot center (O os) and the center (O R) of the rotational shaft is smaller than a length, which is to be obtained by subtracting a sum of an inner peripheral surface radius (r B) of the holder support part configured to support the rotational shaft and a radial minimum thickness (t min) of the bearing part from a radius (r M) of the intermediate roller. a sun roller arranged concentrically with an input shaft; a ring roller arranged concentrically with the sun roller at an outer periphery-side of the sun roller and coupled to an output shaft; a plurality of intermediate rollers configured to rolling-contact an outer peripheral surface of the sun roller and an inner peripheral surface of the ring roller; a plurality of pivot holders each of which is provided for each of the plurality of intermediate rollers and is configured to support a rotational shaft of the intermediate roller; a carrier configured to support the plurality of pivot holders, respectively, and a loading cam mechanism configured to apply a pressing force, which is proportional to a magnitude of transmission torque to be applied to rolling-contact surfaces between respective rollers of the sun roller, the ring roller and the intermediate rollers, to the rolling-contact surfaces, wherein each of the pivot holders comprises: a pair of bearing parts configured to support the rotational shaft of the intermediate roller, and a bridging part configured to integrally couple the bearing parts, a pair of bearing parts configured to support the rotational shaft of the intermediate roller, and a bridging part configured to integrally couple the bearing parts, and wherein the carrier has holder support parts configured to rotatably support the bearing parts, characterized in that the pair of bearing parts have a pivot center (Oos) at an eccentric position from a center (O R) of the rotational shaft, the eccentric position being provided on a side of the center (O R) of the rotational shaft where the bridging part is located, that an interaxial distance (ros) between the pivot center (Oos) of the bearing part and the center (O R) of the rotational shaft is equal to or smaller than a maximum radius of an outer diameter of the intermediate roller, that the pivot center (Oos) is located on an applying line (Lc) of a torque reaction force of transmission torque to be applied to the pivot holder, the applying line (Lc) being parallel to a tangential line (La) tangential at a contact point (Pa) of the sun roller and the intermediate roller, and that the interaxial distance (r os) between the pivot center (O os) and the center (O R) of the rotational shaft is smaller than a length, which is to be obtained by subtracting a sum of an inner peripheral surface radius (r B) of the holder support part configured to support the rotational shaft and a radial minimum thickness (t min) of the bearing part from a radius (r M) of the intermediate roller.