Abstract: A freewheel basically has an inner tubular member, an outer tubular member rotatably mounted on an inner tubular member with a clutch pawl selectively connecting the outer and inner tubular members together. A pawl-retracting member is disposed between the outer and inner tubular members with the pawl-retracting member frictionally engaged with the internal circumferential surface of the outer tubular member to rotate with the outer tubular member between a pawl-retracting position in which the pawl-retracting member maintains the clutch pawl in a disengagement position and a pawl-releasing position in which the pawl-retracting member releases the clutch pawl to move to an engagement position.

Abstract: A bicycle wheel securing structure includes an outer axle, an inner axle, a head member, a lever member, a fixing structure and an adjustment member. The outer axle has a first threaded end and a second end. The inner axle is coupled to the outer axle within an internal bore of the outer axle. The head member is disposed on the inner axle with the lever member operatively mounted to move the head member relative to the inner axle in response to movement of the lever member. The fixing structure is disposed between the outer axle and the inner axle to releasably prevent axial removal of the inner axle from the internal bore of the outer axle.

Abstract: A bicycle component securing structure includes a shaft, a head, a lever and a pivot pin. The head has a recess with the shaft at least partially disposed therein. The lever has portions disposed on opposite sides of the head. The pivot pin couples the head and the lever to the shaft. The pivot pin has a cam section disposed between first and second end sections. The cam section is disposed within the recess to longitudinally move the shaft relative to the head in response to movement of the lever. The first end section is non-rotatably mounted in a first mating hole of the lever such that the lever and pivot pin rotate together. The first end section has a larger maximum transverse width than the second end section. The second end of the pivot pin is retained within the lever.

Abstract: A bicycle disc brake hub is basically provided with a hub axle and a hub shell rotatably disposed about the hub axle. The hub shell has a pair of flanges with a tubular portion extending between the flanges, and a rotor attachment portion configured to prevent an inside diameter of a disc brake rotor from increasing when the diameter of the hub axle increases. The rotor attachment portion is provided in the vicinity of a first shell end of the hub shell, and has a smaller outside diameter than the outside diameter of the tubular portion. A rotor of a disc brake device is attached to the rotor attachment portion.

Abstract: A bicycle wheel securing structure includes an outer axle, an inner axle, a head member and a lever member. The outer axle has a first threaded end and a second end. The inner axle is coupled to the outer axle within an internal bore of the outer axle. The head member is disposed on the inner axle with the lever member operatively mounted to move the head member relative to the inner axle in response to movement of the lever member. A structure is arranged such that a final rotational position of the lever member can be adjusted. A structure is also disposed between the outer axle and the inner axle to releasably prevent axial removal of the inner axle from the internal bore of the outer axle.

Abstract: A bicycle component securing structure includes a shaft, a head, a lever and a pivot pin. The head has a recess with the shaft at least partially disposed therein. The lever has portions disposed on opposite sides of the head. The pivot pin couples the head and the lever to the shaft. The pivot pin has a cam section disposed between first and second end sections. The cam section is disposed within the recess to longitudinally move the shaft relative to the head in response to movement of the lever. The first end section is non-rotatably mounted in a first mating hole of the lever such that the lever and pivot pin rotate together. The first end section has a larger maximum transverse width than the second end section. The second end of the pivot pin is retained within the lever.

Abstract: A bicycle wheel securing structure includes a bicycle fork, an adapter and a holding member. The bicycle fork has two axle support portions that are spaced apart for receiving a bicycle hub therebetween. The adapter is disposed in an adapter receiving bore in one of the axle support portions. The adapter includes a threaded axle mounting opening. The holding member is operatively coupled between the adapter and the one of the axle support portions with the adapter. The holding member prevents both rotational movement of the adapter with respect to the bicycle fork and axial movement of the adapter with respect to the bicycle fork along an axis of the axle mounting opening when the holding member is in a retaining position. The adapter is rotatable within the adapter receiving bore without moving axially with respect to the bicycle fork when the holding member is in a releasing position.

Abstract: A bicycle hub assembly includes a hub shell, a freewheel body and a sealing structure there between. The sealing structure includes a seal that has a lip that extends in an axial direction to engage a radially extending surface on the sealing plate. In one embodiment, the seal is installed in a seal retaining portion formed on the hub shell. In another embodiment, the seal is installed on the freewheel and contacts a radially extending surface on the hub shell.

Abstract: A bicycle hub includes a hub axle, a hub body, a bearing unit and a lock member. The hub axle is configured and arranged to be non-rotatably coupled to the bicycle frame by a mounting shaft. The hub body has a generally cylindrical shape mounted adjacent to an external perimeter of the hub axle. The bearing unit is installed between the hub body and the hub axle at one axial end portion of the bicycle hub so that the hub body freely rotates with respect to the hub axle. The bearing unit includes an outer ring, an inner ring and a plurality of rolling components. The lock member is configured and arranged to retain an axial position of the outer ring of the bearing unit with respect to the hub body by locking the outer ring in one of a plurality of rotational positions.

Abstract: A bicycle wheel securing structure is basically provided with a bicycle fork, an adapter and a holding member. The adapter includes a first portion defining a maximum width of the adapter and a second portion extending axially from the first portion with the second portion being disposed in a hole in an axle support portion of the a bicycle fork. The second portion has an axial bore that is at least partially threaded. The holding member is attached to the axle support portion. The holding member is selectively movable between a retaining position to prevent rotation of the adapter with respect to the bicycle fork and a releasing position to permit rotation of the adapter with respect to the bicycle fork. The holding member remains attached to the axle support portion in both of the retaining and releasing positions.

Abstract: A bicycle hub is provided that comprises a hub axle, a hub body, a bearing and a clearance adjusting member. The bearing includes an outer ring coupled to the hub body, an inner ring coupled to the hub axle, and a plurality of rolling components disposed between the outer ring and the inner ring. The clearance adjusting member is disposed with respect to the outer ring of the bearing such that at least a portion of the clearance adjusting member is disposed axially inwardly of the outer ring. The clearance adjusting member is configured and arranged to prevent a grease inside the bearing to leak toward an axially inward direction of the hub axle with a prescribed radial clearance being maintained between the clearance adjusting member and one of the hub axle and the outer ring of the bearing.

Abstract: A bicycle wheel securing structure includes an outer axle, an inner axle, a head member and a lever member. The outer axle has a first threaded end and a second end. The inner axle is coupled to the outer axle within an internal bore of the outer axle. The head member is disposed on the inner axle with the lever member operatively mounted to move the head member relative to the inner axle in response to movement of the lever member. A structure is arranged such that a final rotational position of the lever member can be adjusted. A structure is also disposed between the outer axle and the inner axle to releasably prevent axial removal of the inner axle from the internal bore of the outer axle.

Abstract: A bicycle hub is provided that comprises a hub axle, a hub body, a bearing and a clearance adjusting member. The bearing includes an outer ring coupled to the hub body, an inner ring coupled to the hub axle, and a plurality of rolling components disposed between the outer ring and the inner ring. The clearance adjusting member is disposed with respect to the outer ring of the bearing such that at least a portion of the clearance adjusting member is disposed axially inwardly of the outer ring. The clearance adjusting member is configured and arranged to prevent a grease inside the bearing to leak toward an axially inward direction of the hub axle with a prescribed radial clearance being maintained between the clearance adjusting member and one of the hub axle and the outer ring of the bearing.

Abstract: A rear hub has a hub shaft and a hub outer that is configured to be mounted in a freely rotatable manner to the hub shaft. The hub outer has an outer main body and an adapter. The outer main body is arranged on the radially inward side of a sprocket, and has a first rotation preventing section that engages with an engaging section 64 of the sprocket in such a manner that the outer main body cannot rotate relative to the sprocket. The adapter is mounted in a freely rotatable manner on an adapter mounting section of the outer main body. The adapter includes a second rotation preventing section that engages with the engaging section of the sprocket in such a manner that the adapter cannot rotate relative to the sprocket.

Abstract: A freewheel basically has an inner tubular member, an outer tubular member rotatably mounted on an inner tubular member with a clutch pawl selectively connecting the outer and inner tubular members together. A pawl-retracting member is disposed between the outer and inner tubular members with the pawl-retracting member frictionally engaged with the internal circumferential surface of the outer tubular member to rotate with the outer tubular member between a pawl-retracting position in which the pawl-retracting member maintains the clutch pawl in a disengagement position and a pawl-releasing position in which the pawl-retracting member releases the clutch pawl to move to an engagement position.

Abstract: A bicycle sprocket assembly includes first, second and third sprockets. A first mounting portion of the first sprocket is directly connected to a second mounting portion of the second sprocket by first fasteners at circumferentially spaced apart locations. The first sprocket is supported on the second sprocket by the first fasteners and axially spaced from the second sprocket by the first fasteners. A second mounting portion of the second sprocket is directly connected to a third mounting portion of the third sprocket by second fasteners. The second sprocket is supported on the third sprocket by the second fasteners and axially spaced from the third sprocket by the second fasteners. First and second radially innermost ends of the first and second sprockets are radially spaced from and free from contact with a freewheel when the bicycle sprocket assembly is mounted to the freewheel.

Abstract: A front bicycle hub is provided with a hub shaft, a hub shell and at least one shaft bearing (preferably two shaft bearings). The hub shaft has an external thread formed on the outer circumference surface at least one end and an internal thread formed on the inner circumference of the end where the external thread is formed. The hub shell is rotatably supported on the outer circumference side of the hub shaft by the shaft bearing. The shaft bearing is threaded on with external thread of the hub shaft. The internal thread is formed deeper toward the inner side in the axial direction than the shaft bearing.

Abstract: An apparatus for coupling a bicycle disc brake rotor to a bicycle wheel hub is disclosed. The apparatus includes an adapter and a rotor retaining member. The adapter is adapted to be nonrotatably coupled to the bicycle wheel hub and to be nonrotatably coupled to the disc brake rotor. The adapter includes a plurality of axially extending protruding portions adapted to extend through the disc brake rotor to nonrotatably couple the disc brake rotor to the adapter. At least one of the protruding portions has a groove defined therein. A portion of the rotor retaining member is received in the groove in the protruding portion.

Abstract: A bicycle hub is provided that comprises a hub axle, a hub body, a bearing and a clearance adjusting member. The bearing includes an outer ring coupled to the hub body, an inner ring coupled to the hub axle, and a plurality of rolling components disposed between the outer ring and the inner ring. The clearance adjusting member is disposed with respect to the outer ring of the bearing such that at least a portion of the clearance adjusting member is disposed axially inwardly of the outer ring. The clearance adjusting member is configured and arranged to prevent a grease inside the bearing to leak toward an axially inward direction of the hub axle with a prescribed radial clearance being maintained between the clearance adjusting member and one of the hub axle and the outer ring of the bearing.

Abstract: A bicycle disc brake hub is basically provided with a hub axle and a hub shell rotatably disposed about the hub axle. The hub shell has a pair of flanges with a tubular portion extending between the flanges, and a rotor attachment portion configured to prevent an inside diameter of a disc brake rotor from increasing when the diameter of the hub axle increases. The rotor attachment portion is provided in the vicinity of a first shell end of the hub shell, and has a smaller outside diameter than the outside diameter of the tubular portion. A rotor of a disc brake device is attached to the rotor attachment portion.