Bicycle front derailleur with a variable actuation ratio

A front derailleur comprising:

• a base member structured to be attached to a bicycle frame member;
• a chain guide operatively connected to the base member;
• and
• an actuation mechanism coupled to the base member and to the chain guide for moving the chain guide relative to the base member;
• wherein the actuation mechanism comprises:
• a first link pivotably coupled to the base member and to the chain guide;
• wherein the first link is pivotably coupled to the base member for pivoting around an axis that extends through both the first link and the base member;
• an actuating arm coupled to the first link for attaching a control cable;
• wherein the actuating arm does not form part of the first link;
• and
• a control cable route adjuster provided on the actuating arm for adjusting a route of the control cable.

A front derailleur comprising:

• a base member structured to be attached to a bicycle frame member;
• a chain guide operatively connected to the base member;
• and
• an actuation mechanism coupled to the base member and to the chain guide for moving the chain guide relative to the base member;
• wherein the actuation mechanism comprises:
• a first link pivotably coupled to the base member and to the chain guide;
• an actuating arm coupled to the first link for attaching a control cable;
• wherein the actuating arm does not form part of the first link;
• and
• a control cable route adjuster provided on the actuating arm for adjusting a route of the control cable;
• wherein the control cable route adjuster comprises a separate member that is movable relative to the actuating arm.