Patent ID: 7090603

Claim:
A bicycle derailleur adapted to be mounted to a bicycle frame, wherein the derailleur comprises: a mounting member adapted to be mounted to the bicycle frame; a base member pivotably mounted relative to the mounting member; a biasing mechanism that biases the base member clockwise relative to the mounting member when viewed laterally outwardly from the base member; a chain guide; a coupling mechanism coupled between the base member and the chain guide so that the chain guide moves relative to the base member; and a rotation restricting mechanism disposed in a force communicating path between the mounting member and the base member to restrict counterclockwise rotation of the base member relative to the mounting member; wherein the rotation restricting mechanism is positioned to substantially limit the amount of rotation of the base member relative to the mounting member so as to prevent the chain guide from striking the bicycle frame upon counterclockwise rotation of the base member relative to the mounting member when the base member is mounted to the bicycle frame.