A bicycle rear derailleur is basically provided with a base member including a frame mounting portion having a mounting opening, and a fastening member extending through the mounting opening of the base member. The fastening member has a first threaded portion and a placement portion adjacent to the first threaded portion. An adjusting member is configured to adjust a position of the bicycle rear derailleur relative to a bicycle. An intermediate member includes a contact portion disposed between the adjusting member and the bicycle. The intermediate member has a second threaded portion configured to threadedly engage with the first threaded portion of the fastening member. The second threaded portion has an innermost diameter that is smaller than the outermost diameter of the first threaded portion. The intermediate member is disposed on the placement portion of the fastening member.

A bicycle front derailleur including a chain guide; a linkage assembly; and a mounting bracket configured to mount the chain guide to a bicycle frame such that the chain guide is movable with respect to the mounting bracket. The mounting bracket includes at least one fixed portion adapted to receive a fastener to fix the fixed portion so that an axis of the fastener extends toward a bottom bracket hangar of the bicycle frame when the fixed portion is fixed to the bicycle frame via the fastener. The axis of the fastener is generally vertical.

A bicycle front derailleur including a chain guide; a linkage assembly; and a mounting bracket configured to mount the chain guide to a bicycle frame such that the chain guide is movable with respect to the mounting bracket. The mounting bracket includes at least one fixed portion adapted to receive a fastener to fix the fixed portion so that an axis of the fastener extends toward a bottom bracket hangar of the bicycle frame when the fixed portion is fixed to the bicycle frame via the fastener. The axis of the fastener is generally vertical.

A bicycle front derailleur is provided that can be easily coupled to a bicycle frame. The bicycle front derailleur includes a base member, a chain guide and a link mechanism. The base member is configured to be coupled to a bottom bracket hanger of the bicycle frame. The chain guide is configured to guide a chain. The link mechanism connects the chain guide to the base member to move the chain guide between a retracted position and an extended position. The base member includes a recess configured to accommodate a part of the chain guide in a state where the chain guide is located at the retracted position.

A bicycle front derailleur is provided that can be easily coupled to a bicycle frame. The bicycle front derailleur includes a base member, a chain guide and a link mechanism. The base member is configured to be coupled to a bottom bracket hanger of the bicycle frame. The chain guide is configured to guide a chain. The link mechanism connects the chain guide to the base member to move the chain guide between a retracted position and an extended position. The base member includes a recess configured to accommodate a part of the chain guide in a state where the chain guide is located at the retracted position.

A derailleur comprising a chain guide, a fixed body adapted for being fixedly associated with a part of frame of the bicycle, and an actuation arm hinged to the fixed body. A cable-clamping washer constrained to the actuation arm locks a control cable on the actuation arm. A first fastening station and a second fastening station are defined on said actuation arm and configured to fasten the control cable in different positions on the actuation arm. An anti-rotation appendage projecting from the chain-clamping washer is adapted for being inserted in a holding seat of the actuation arm and holding the control cable in at least one of the first and the second fastening stations.

A derailleur comprising a chain guide, a fixed body adapted for being fixedly associated with a part of frame of the bicycle, and an actuation arm hinged to the fixed body. A cable-clamping washer constrained to the actuation arm locks a control cable on the actuation arm. A first fastening station and a second fastening station are defined on said actuation arm and configured to fasten the control cable in different positions on the actuation arm. An anti-rotation appendage projecting from the chain-clamping washer is adapted for being inserted in a holding seat of the actuation arm and holding the control cable in at least one of the first and the second fastening stations.

A bicycle front derailleur that is movable between shift positions in association with an indexer. The inner mechanical end stop is adjusted at the first indexing position so there is no loosening of the control cable in the last downward gearshifting operation, with the benefit of an immediate and rapid response in the first upward gearshifting operation. The outer end stop is adjusted to interrupt the rotation of the cable-winding bush before it reaches the last indexing position. This pair of mechanical end stops limits the excursion of the derailleur to prevent it being able to shift the chain too much towards the frame or too much away from the frame, which ensures that the chain is not shifted beyond the gears.

A bicycle front derailleur that is movable between shift positions in association with an indexer. The inner mechanical end stop is adjusted at the first indexing position so there is no loosening of the control cable in the last downward gearshifting operation, with the benefit of an immediate and rapid response in the first upward gearshifting operation. The outer end stop is adjusted to interrupt the rotation of the cable-winding bush before it reaches the last indexing position. This pair of mechanical end stops limits the excursion of the derailleur to prevent it being able to shift the chain too much towards the frame or too much away from the frame, which ensures that the chain is not shifted beyond the gears.

A fastening device for a bicycle front derailleur includes a supporting unit disposed between a mounting bracket and a main body, a spacer disposed on the mounting bracket and having an adjusting portion, a threaded fastener, and an adjuster disposed on the adjusting portion of the spacer. An end of the supporting unit is abutted against a seat tube, and the other end has a supporting portion where an end of the adjuster is abutted. The mounting bracket is located between the supporting unit and the spacer. The threaded fastener is inserted through the spacer, the mounting bracket, the supporting unit and the main body in order, thereby fastening the spacer, the supporting unit and the main body to the mounting bracket. When moving axially, the adjuster is able to drive the spacer, the threaded fastener and the main body to rotate about a derailleur adjustment axis.