An internal hub transmission for a bicycle comprises a drive member
rotatably supported around a hub axle, a hub body rotatably supported
around the hub axle, a planetary gear mechanism disposed in a force
transmission path between the drive member and the hub body that
communicates rotational force from the drive member to the hub body
through a plurality of power transmitting paths, and a clutch member that
controls the planetary gear mechanism. A one-way clutch mechanism is
disposed in a force transmission path between the drive member and the
clutch member.