Bicycle rear derailleur

A bicycle rear derailleur comprising:

• a base member including a first support portion and a first axle with the first support portion being pivotally mounted on the first axle;
• a movable member including a second support portion, a chain guide and a second axle with the chain guide being pivotally mounted on the second support portion by the second axle;
• a moving mechanism coupled between the first and second support portions;
• and
• an angular adjustment arrangement including an electric motor and a gearing arrangement, the electric motor being operatively coupled to electrically pivot the first support portion relative to the first axle when the moving mechanism is moved to move the second support portion of the movable member relative to the first support portion of the base member, the gearing arrangement including a driven gear mounted on the first support portion of the base member for rotating the first support portion of the base member relative to the first axle.

A bicycle rear derailleur comprising:

• a base member including a first support portion and a first axle with the first support portion being pivotally mounted on the first axle;
• a movable member including a second support portion, a chain guide and a second axle with the chain guide being pivotally mounted on the second support portion by the second axle, the chain guide being non-rotatably fixed to the second axle of the movable member such that the chain guide and the second axle rotate together;
• a moving mechanism coupled between the first and second support portions;
• and
• an angular adjustment arrangement including an electric motor and a gearing arrangement, the electric motor being operatively coupled to electrically pivot the chain guide relative to the second support portion of the movable member when the moving mechanism is moved to move the second support portion of the movable member relative to the first support portion of the base member, the gearing arrangement including a driven gear mounted on the second axle of the movable member for rotating the chain guide relative to the second support portion of the movable member.

A bicycle rear derailleur comprising:

• a base member including a first support portion and a first axle with the first support portion being pivotally mounted on the first axle;
• a movable member including a second support portion, a chain guide and a second axle with the chain guide being pivotally mounted on the second support portion by the second axle;
• a moving mechanism coupled between the first and second support portions, the moving mechanism including a pair of links with a first electric motor operatively coupled to at least one of the links;
• and
• an angular adjustment arrangement including a second electric motor that is operatively coupled to pivot the first support portion of the base member relative to the first axle, and a third electric motor that is operatively coupled to pivot the chain guide relative to the second support portion of the movable member when the moving mechanism is moved to move the second support portion of the movable member relative to the first support portion of the base member.

A bicycle rear derailleur comprising:

• a base member including a first support portion and a first axle with the first support portion being pivotally mounted on the first axle;
• a movable member including a second support portion, a chain guide and a second axle with the chain guide being pivotally mounted on the second support portion by the second axle;
• a moving mechanism coupled between the first and second support portions;
• and
• an angular adjustment arrangement operatively coupled to at least one of the base member and the movable member, the angular adjustment arrangement being electrically operated with the bicycle rear derailleur being in an uninstalled position such that the angular adjustment arrangement performs at least one of
• electrically pivoting and holding the first support portion relative to the first axle in different angular positions, and
• electrically pivoting and holding the chain guide relative to the second support portion in different angular positions
• when the moving mechanism is moved to move the second support portion of the movable member relative to the first support portion of the base member.