Abstract: A front derailleur basically includes a fixed member, a movable member, a driven link and a first link. The fixing member is configured to be fixed to a bicycle frame. The movable member is movably supported with respect to the fixed member. The driven link is operatively coupled to the movable member. The first link movably connects the movable member to the fixed member, and is adjustably coupled to the driven link in a fixed position by a fixing structure to establish a fixed rest position of the movable member with respect to the fixed member.

Abstract: 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.

Abstract: A front derailleur includes a base member, a chain guide, a link mechanism and a cable guiding structure. The base member is fixedly coupled to a bicycle. The chain guide is configured to guide a chain. The link mechanism movably couples the chain guide to the base member between a retracted position and an extended position in response to movement of an operation cable. The cable guiding structure has one of bore, recess and groove formed on the link mechanism to guide the operation cable. The operation cable exits forwardly from the cable guiding structure within a sector having an angle of 150 degrees around the crank axis from an upper radius lying in a first plane that is perpendicular to a second plane containing a crank axis and a rear wheel axis.

Abstract: A front derailleur basically includes a fixed member, a movable member, a driven link and a first link. The fixing member is configured to be fixed to a bicycle frame. The movable member is movably supported with respect to the fixed member. The driven link is operatively coupled to the movable member. The first link movably connects the movable member to the fixed member, and is adjustably coupled to the driven link in a fixed position by a fixing structure to establish a fixed rest position of the movable member with respect to the fixed member.

Abstract: A front derailleur is basically provided with a base member, a chain guide, a link mechanism and a cable guiding structure. The base member is fixedly coupled to a bicycle. The chain guide is configured to guide a chain. The link mechanism movably couples the chain guide to the base member between a retracted position and an extended position in response to movement of an operation cable. The link mechanism includes a cable attachment portion that is configured to be attached to the operation cable. The cable guiding structure guides the operation cable from the cable attachment portion. The cable guiding structure is disposed on at least one of the base member and the link mechanism. The cable guiding structure has a cable exit that is arranged such that the operation cable exits forwardly from the cable guiding structure towards the front of the bicycle.

Abstract: A bicycle frame includes a first frame member and a second frame member configured to be pivotally connected to the first frame member about a pivot axis. The first frame member includes a threaded hole, through which a fixing bolt for fixing a mounting member of a bicycle front derailleur to the first frame member passes, and an abutting portion configured to restrict rotation of a mounting member of a bicycle front derailleur around the fixing bolt by abutting the mounting member. The threaded hole is located on a front side of the pivot axis.

Abstract: A front derailleur is provided for mounting to a bicycle having a crank axis. The front derailleur is provided with a base member, a chain guide and a link mechanism. The base member is mounted on the bicycle for positioning in a predetermined adjustment direction. The chain guide guides the chain. The link mechanism movably couples the chain guide to the base member. The link mechanism includes a first link member pivotally arranged in relation to the base member about a first link axis and pivotally arranged in relation to the chain guide about a second link axis. The first link axis and the second link axis are arranged non-parallel and non-orthogonal to the predetermined adjustment direction when viewed from the axial direction of the crank axis in a state where the base member is mounted to the bicycle.

Abstract: A bicycle front derailleur includes a mounting member, a chain guide, and a linkage assembly that pivotally couples the mounting member to the chain guide. The mounting member is configured to be mounted to a first frame member of a bicycle frame. The first frame member is pivotally connected to a second frame member of the bicycle frame about a pivot axis. The mounting member includes an attachment portion through which a fixing bolt for fixing the mounting member to the first frame member passes and includes an abutment configured to restrict rotation of the mounting member around the fixing bolt. The attachment portion is located on a front side of the pivot axis when the mounting member is mounted to the first frame member. The bicycle frame includes a structure for engaging and supporting the mounting member.

Abstract: A bicycle front derailleur includes a mounting member, a chain guide, and a linkage assembly that pivotally couples the mounting member to the chain guide. The mounting member is configured to be mounted to a first frame member of a bicycle frame. The first frame member is pivotally connected to a second frame member of the bicycle frame about a pivot axis. The mounting member includes an attachment portion through which a fixing bolt for fixing the mounting member to the first frame member passes and includes an abutment configured to restrict rotation of the mounting member around the fixing bolt. The attachment portion is located on a front side of the pivot axis when the mounting member is mounted to the first frame member. The bicycle frame includes a structure for engaging and supporting the mounting member.

Abstract: A bicycle derailleur has a base member, a movable member, a first link member and a second link member. The movable member is movable with respect to the base member between a retracted position and an extended position. The first link member includes a first connecting portion pivotally coupled to the movable member about a first pivot axis. The first link member is pivotally coupled to the base member about a second pivot axis. The second link member is pivotally coupled to the movable member about a third pivot axis. The second link member is pivotally coupled to the base member about a fourth pivot axis. The first connecting portion at least partially overlaps with the second link member as viewed in a direction parallel to the first pivot axis in a state in which the movable member is disposed at one of the retracted and extended positions.

Abstract: A derailleur comprises a base member, a chain guide, a link member, and a shaft member. The base member is configured to be attached to a bicycle frame. The chain guide comprises a first member and a second member. The first member includes a first connecting portion. The second member includes a second connecting portion to overlap the first connecting portion. The link member is configured to movably couple the chain guide to the base member. The shaft member is configured to couple the first connecting portion to the second connecting portion and configured to rotatably couple the chain guide to the link member.

Abstract: A bicycle derailleur has a base member, a movable member, a first link member and a second link member. The movable member is movable with respect to the base member between a retracted position and an extended position. The first link member includes a first connecting portion pivotally coupled to the movable member about a first pivot axis. The first link member is pivotally coupled to the base member about a second pivot axis. The second link member is pivotally coupled to the movable member about a third pivot axis. The second link member is pivotally coupled to the base member about a fourth pivot axis. The first connecting portion at least partially overlaps with the second link member as viewed in a direction parallel to the first pivot axis in a state in which the movable member is disposed at one of the retracted and extended positions.

Abstract: A front derailleur is basically provided with a base member, a chain guide, a link mechanism and a cable guiding structure. The base member is fixedly coupled to a bicycle. The chain guide is configured to guide a chain. The link mechanism movably couples the chain guide to the base member between a retracted position and an extended position in response to movement of an operation cable. The link mechanism includes a cable attachment portion that is configured to be attached to the operation cable. The cable guiding structure guides the operation cable from the cable attachment portion. The cable guiding structure is disposed on at least one of the base member and the link mechanism. The cable guiding structure has a cable exit that is arranged such that the operation cable exits forwardly from the cable guiding structure towards the front of the bicycle.

Abstract: A front derailleur is attachable to a bicycle with a frame in which a fixing bore is provided. The front derailleur basically includes a base member, a chain guide and a link mechanism. The base member has an attaching bore for attaching the base member to a fixing bore of a frame by a fastening member. The chain guide configured to guide a chain. The link mechanism movably couples the chain guide to the base member. The base member is disposed with respect to the chain guide such that at least a part of the attaching bore is disposed in front of the chain guide and above the chain guide while the front derailleur is in a state in which the base member is attached to the frame.

Abstract: A derailleur comprises a base member, a movable member, a link member, and a biasing mechanism. The movable member is configured to be movable with respect to the base member between a retracted position and an extended position. The link member is configured to movably couple the movable member to the base member. The biasing mechanism is configured to bias the link member such that the movable member is disposed at one of the retracted position and the extended position. The biasing mechanism comprises a biasing member and an intermediate member. The biasing member has a first end portion. The intermediate member is separately provided from the movable member and the link member so as to transmit biasing force of the biasing member from the first end portion to one of the movable member and the link member through the intermediate member.

Abstract: A bicycle derailleur is basically provided with a base member, a movable member and a connecting structure. The base member includes a bicycle mounting portion. The movable member is movable with respect to the base member between a first position and a second position that is farther than the first position from the base member. The connecting structure movably connects the movable member to the base member. The connecting structure moves the movable member with an actuation ratio that descends and then ascends as the movable member moves from the first position towards the second position.

Abstract: A front derailleur comprises 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 between a first position corresponding to a location for positioning a chain on a first sprocket and a second position corresponding to a location for positioning the chain on a second sprocket. The actuation mechanism is configured so that an actuation ratio of the derailleur when the chain guide is located in the first position is greater than or equal to 1.5 times the actuation ratio when the chain guide is located in the second position.

Abstract: A bicycle front derailleur that includes a main body and a chain guide operatively coupled to the main body. The chain guide includes a first plate, a second plate, and a contact member affixed to the first plate. The contact member includes a flexible portion that is adapted to flex when contacted by a chain running through the chain guide.

Abstract: A derailleur comprises a base member, a movable member, a link member, and a biasing mechanism. The movable member is configured to be movable with respect to the base member between a retracted position and an extended position. The link member is configured to movably couple the movable member to the base member. The biasing mechanism is configured to bias the link member such that the movable member is disposed at one of the retracted position and the extended position. The biasing mechanism comprises a biasing member and an intermediate member. The biasing member has a first end portion. The intermediate member is separately provided from the movable member and the link member so as to transmit biasing force of the biasing member from the first end portion to one of the movable member and the link member through the intermediate member.

Abstract: A derailleur comprises a base member, a chain guide, a link member, and a shaft member. The base member is configured to be attached to a bicycle frame. The chain guide comprises a first member and a second member. The first member includes a first connecting portion. The second member includes a second connecting portion to overlap the first connecting portion. The link member is configured to movably couple the chain guide to the base member. The shaft member is configured to couple the first connecting portion to the second connecting portion and configured to rotatably couple the chain guide to the link member.