Abstract: A rowing boat foot support assembly is provided with a support member, a shoe attachment member and a release trigger mechanism. The support member is configured to be coupled to a rowing boat. The shoe attachment member is pivotally supported on the support member. The shoe attachment member includes a base portion and a movable fixing portion that is movably arranged with respect to the base portion between a shoe retaining position and a shoe releasing position. The release trigger mechanism is provided between the support member and the movable fixing portion to move the movable fixing portion from the shoe retaining position to the shoe releasing position.

Abstract: A rowing boat foot support assembly is provided with a support member, a shoe attachment member and a release trigger mechanism. The support member is configured to be coupled to a rowing boat. The shoe attachment member is pivotally supported on the support member. The shoe attachment member includes a base portion and a movable fixing portion that is movably arranged with respect to the base portion between a shoe retaining position and a shoe releasing position. The release trigger mechanism is provided between the support member and the movable fixing portion to move the movable fixing portion from the shoe retaining position to the shoe releasing position.

Abstract: A bicycle crank assembly is configured to simplify the work required to adjust the bearing play by the crank assembly when the crank assembly is mounted. The bicycle crank assembly has a left crank that is mounted on a crank axle of the bicycle, and is provided with a crank body and an adjustment member. The crank body includes a crank axle mounting part non-rotatably mounting to one end of the crank axle, an arm part extending from the crank axle mounting part, a pedal mounting part for mounting the pedal and provided at the tip of the arm part, and a male screw part formed on the crank axle mounting part. The adjustment member includes a tubular part having a female screw part into which the male screw part is screwed, and a contact part formed at one end of the tubular part and capable of contacting the bearing supporting the crank axle.

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 bicycle crank assembly is configured to simplify the work required to adjust the bearing play by the crank assembly when the crank assembly is mounted. The bicycle crank assembly has a left crank that is mounted on a crank axle of the bicycle, and is provided with a crank body and an adjustment member. The crank body includes a crank axle mounting part non-rotatably mounting to one end of the crank axle, an arm part extending from the crank axle mounting part, a pedal mounting part for mounting the pedal and provided at the tip of the arm part, and a male screw part formed on the crank axle mounting part. The adjustment member includes a tubular part having a female screw part into which the male screw part is screwed, and a contact part formed at one end of the tubular part and capable of contacting the bearing supporting the crank axle.

Abstract: A bicycle head cap unit is configured and arranged to mount an electrical device or part in a steerer tube of a bicycle fork. The bicycle head cap unit basically has a cap portion and a housing portion. The cap portion is dimension to close a top opening of a steerer tube of a bicycle fork. The housing portion is coupled to the cap portion. The housing portion is configured to form an electrical part receiving space that is located within the steerer tube when the cap portion closes the top opening of the steerer tube of the bicycle fork.

Abstract: A bicycle crank axle bearing assembly includes a pair of first and second axle support members, a pair of first and second bearings and a lock nut. The first and second axle support members include first and second mounting sections with first and second male screw parts that are configured and arranged to be non-rotatably coupled to a hanger part of a bicycle frame, and first and second bearing retaining sections in which the first and second bearings are retained to rotatably support a crank axle. The lock nut is disposed at least one of the first and second male screw parts of the first and second axle support members to retain an axial position of the at least one of the first and second support members with respect to the hanger part.

Abstract: A bearing apparatus for a bicycle hub comprises a bearing member and a lock member. The bearing member comprises an inner peripheral surface for receiving a hub spindle therein, a bearing surface for engaging a bearing, and an interlock portion. The first lock member comprises an inner peripheral surface for receiving the hub spindle therein and a mating portion for engaging the interlock portion of the bearing member so that the bearing member is nonrotatably fixed relative to the first lock member.

Abstract: A front derailleur motor unit assembly is provided that is preferably part of a motorized front derailleur assembly. The motor unit assembly includes a motor unit and a tightening member. The motor unit includes a front derailleur mounting portion, and a bicycle frame mounting portion having a motor attachment opening. The tightening member extends through the motor attachment opening to couple the motor unit to a bicycle frame at a first mounting location. Preferably, the front derailleur mounting portion is coupled to a front derailleur fixing body of the front derailleur. Preferably, a linkage assembly is pivotally coupled to the fixing body, while a chain guide is preferably pivotally coupled to the linkage assembly to be laterally moved relative to the fixing body.

Abstract: A bicycle hub is provided with a hub axle assembly, a hub shell and a pair of bearing units. The hub axle assembly basically has a hub axle washer, a bicycle hub axle and a washer retaining portion or member. The hub axle washer includes an outer peripheral surface and an inner peripheral surface defining an axle receiving opening. The bicycle hub axle includes a shaft portion and a head portion with the washer retaining member or portion being located on the shaft portion to retain the hub axle washer on the shaft portion. In the preferred embodiment, the washer retaining portion or member is a resilient member in the form of a flexible O-ring.

Abstract: A bicycle head cap unit is configured and arranged to mount an electrical device or part in a steerer tube of a bicycle fork. The bicycle head cap unit basically has a cap portion and a housing portion. The cap portion is dimension to close a top opening of a steerer tube of a bicycle fork. The housing portion is coupled to the cap portion. The housing portion is configured to form an electrical part receiving space that is located within the steerer tube when the cap portion closes the top opening of the steerer tube of the bicycle fork.

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 bicycle hub is provided with a hub axle assembly, a hub shell and a pair of bearing units. The hub axle assembly basically has a hub axle washer, a bicycle hub axle and a washer retaining portion or member. The hub axle washer includes an outer peripheral surface and an inner peripheral surface defining an axle receiving opening. The bicycle hub axle includes a shaft portion and a head portion with the washer retaining member or portion being located on the shaft portion to retain the hub axle washer on the shaft portion. In the preferred embodiment, the washer retaining portion or member is a resilient member in the form of a flexible O-ring.

Abstract: A bearing apparatus for a bicycle hub comprises a bearing member and a lock member. The bearing member comprises an inner peripheral surface for receiving a hub spindle therein, a bearing surface for engaging a bearing, and an interlock portion. The first lock member comprises an inner peripheral surface for receiving the hub spindle therein and a mating portion for engaging the interlock portion of the bearing member so that the bearing member is nonrotatably fixed relative to the first lock member.