Abstract: A hydraulic operating device is provided. The disc brake caliper may include a brake lever pivotable on a pivot axis, a hydraulic cylinder having a cylinder axis and a reservoir arranged so as to at least partly overlap the hydraulic cylinder as seen from a first direction perpendicular to the pivot axis, the reservoir having a reservoir axis which has a different orientation than the cylinder axis as viewed from the first direction.

Abstract: A bicycle handlebar clamp is configured to be attached on a handlebar. The bicycle handlebar clamp includes an outer surface, a handlebar engagement surface and an attachment bore. The handlebar engagement surface is configured to be engaged with the handlebar. The fixing nut receiving aperture is configured to receive a fixing nut. The fixing nut receiving aperture extends through the handlebar clamp from the outer surface to the handlebar engagement surface. The attachment bore is configured to receive an attachment pin. The attachment bore and the fixing nut receiving aperture intersect each other. A bicycle handlebar clamp assembly is provided with the bicycle handlebar clamp.

Abstract: A bicycle rim brake is basically provided with a first brake arm and a hydraulic actuation device. The first brake arm includes a first coupling portion configured to pivot about a first pivot axis, a first actuated portion and a first mounting portion. The first mounting portion is configured to mount a first friction member and extends from the first coupling portion. The hydraulic actuation device is operatively coupled to the first actuated portion of the first brake arm. The hydraulic actuation device includes a cylinder housing defining a hydraulic chamber, a first piston movably disposed in the hydraulic chamber of the cylinder housing, and a first sealing member provided on the cylinder housing so as to at least partially support the first piston in the hydraulic chamber.

Abstract: A bicycle hydraulic hose cap comprises a hose attachment to be detachably attached to an end of a hydraulic hose, and a reservoir including a fluid chamber having a variable internal volume. The fluid chamber is connected to a fluid passageway of the hydraulic hose in an attachment state where the hose attachment is attached to the end of the hydraulic hose.

Abstract: A bicycle rim brake comprises a first shaft, a second shaft, a first brake arm, a second brake arm, and a reinforcing member. The first shaft includes a first fixed end part fixedly provided with respect to a bicycle body. The second shaft includes a second fixed end part fixedly provided with respect to the bicycle body. The first brake arm is pivotally provided on the first shaft around a first pivot axis. The first brake arm has an opposite surface opposite to the first fixed end part. The second brake arm is pivotally provided on the second shaft around a second pivot axis. The reinforcing member couples the first shaft to the second shaft. The reinforcing member is provided such that the first brake arm is at least partially arranged farther from the first fixed end part than the reinforcing member.

Abstract: A bicycle clamp structure comprises a first clamp member and a second clamp member. The first clamp member includes a first clamp body having an inner curved surface defining a first inner radius. The second clamp member is configured to clamp a bicycle tube member between the first clamp member and the second clamp member. The second clamp member includes a second curved surface defining a second inner radius different from the first inner radius of the first clamp body.

Abstract: A bicycle hydraulic hose cap comprises a hose attachment to be detachably attached to an end of a hydraulic hose, and a reservoir including a fluid chamber having a variable internal volume. The fluid chamber is connected to a fluid passageway of the hydraulic hose in an attachment state where the hose attachment is attached to the end of the hydraulic hose.

Abstract: A bicycle operating device mounting assembly is basically provided with a handlebar mounting clamp and an adapter member. The handlebar mounting clamp has a clamp opening. The adapter member includes at least a first part that is detachably disposed within the clamp opening. The first part is configured to be clamped between the handlebar mounting clamp and a handlebar as the handlebar mounting clamp is tightened in a state that the first part is disposed within the clamp opening.

Abstract: A bicycle component fixing structure has a fixing nut that is configured to be coupled to a handlebar clamp and a fixing bolt. The fixing nut includes a threaded bore with an entrance opening and an exit opening. The threaded bore has a first axial length between the entrance and exit openings. The fixing nut defines a bolt shaft receiving space that is disposed adjacent the bolt exit opening. The fixing bolt includes a head and a shaft. The shaft has a non-threaded portion disposed between first and second threaded portions. The first threaded portion is disposed closer to the head of the fixing bolt than the second threaded portion. The first and second threaded portions threadedly engage the threaded bore of the fixing nut. The non-threaded portion has a second axial length that is greater than the first axial length of the threaded bore of the fixing nut.

Abstract: A bicycle clamp structure comprises a first clamp member, a second clamp member, a connecting member, a first connecting structure, a second connecting structure, and a third connecting structure. The second clamp member is configured to clamp a bicycle tube member between the first clamp member and the second clamp member. The connecting member is configured to be arranged between the first clamp member and the second clamp member. The first connecting structure is configured to connect the first clamp member with the connecting member. The second connecting structure is configured to connect the second clamp member with the connecting member. The third connecting structure is configured to connect the first clamp member with the second clamp member.

Abstract: A bicycle rim brake comprises a first shaft, a second shaft, a first brake arm, a second brake arm, and a reinforcing member. The first shaft includes a first fixed end part fixedly provided with respect to a bicycle body. The second shaft includes a second fixed end part fixedly provided with respect to the bicycle body. The first brake arm is pivotally provided on the first shaft around a first pivot axis. The first brake arm has an opposite surface opposite to the first fixed end part. The second brake arm is pivotally provided on the second shaft around a second pivot axis. The reinforcing member couples the first shaft to the second shaft. The reinforcing member is provided such that the first brake arm is at least partially arranged farther from the first fixed end part than the reinforcing member.

Abstract: A bicycle disc brake caliper is basically provided with a first side caliper part, a second side caliper part, a layer of bonding material, a mating recess and a mating protrusion. The first side caliper part includes a first bonding surface. The second side caliper part includes a second bonding surface. The layer of bonding material is disposed between the first and second bonding surfaces of the first and second side caliper parts. The mating recess is disposed on one of the first and second side caliper parts. The mating protrusion is disposed on the other of the first and second side caliper parts and mated with the mating recess. The first and second bonding surfaces of the first and second side caliper parts are fixedly bonded together by the layer of bonding material with a brake disc slot being defined between the first and second side caliper parts.

Abstract: A bicycle handlebar clamp assembly has a handlebar clamp, a fixing nut, and a fixing bolt. The fixing nut includes a threaded bore having a bolt entrance opening and a bolt exit opening. The fixing nut defines a bolt shaft receiving space disposed adjacent the bolt exit opening. The fixing bolt includes a head and a shaft extending from the head. The shaft has a non-threaded portion disposed between two threaded portions. One of threaded portions is disposed closer to the head of the fixing bolt than the other threaded portion. The threaded portions are dimensioned to threadedly engage the threaded bore of the fixing nut. The non-threaded portion has a axial length that is greater than the axial length of the threaded bore of the fixing nut.

Abstract: A bicycle operating device mounting assembly is basically provided with a handlebar mounting clamp and an adapter member. The handlebar mounting clamp has a clamp opening that defines a first diameter. The adapter member includes a connecting portion and a projecting portion. The connecting portion is detachably disposed within the clamp opening. The projecting portion projects from the clamp opening. The connecting portion has a second diameter that is smaller than the first diameter. The connecting portion is configured to clamp a handlebar as the handlebar mounting clamp is tightened in a state that the connecting portion is disposed within the clamp opening.

Abstract: A bicycle rim brake is basically provided with a first brake arm and a hydraulic actuation device. The first brake arm includes a first coupling portion configured to pivot about a first pivot axis, a first actuated portion and a first mounting portion. The first mounting portion is configured to mount a first friction member and extends from the first coupling portion. The hydraulic actuation device is operatively coupled to the first actuated portion of the first brake arm. The hydraulic actuation device includes a cylinder housing defining a hydraulic chamber, a first piston movably disposed in the hydraulic chamber of the cylinder housing, and a first sealing member provided on the cylinder housing so as to at least partially support the first piston in the hydraulic chamber.

Abstract: A hydraulic operating device is provided. The disc brake caliper may include a brake lever pivotable on a pivot axis, a hydraulic cylinder having a cylinder axis and a reservoir arranged so as to at least partly overlap the hydraulic cylinder as seen from a first direction perpendicular to the pivot axis, the reservoir having a reservoir axis which has a different orientation than the cylinder axis as viewed from the first direction.

Abstract: A bicycle rim brake is basically provided with first and second brake arms and a hydraulic actuation device. The first brake arm has a first coupling portion, a first actuated portion and a first mounting portion. The first coupling portion includes a first mounting fastener defining a first pivot axis of the first brake arm. The first mounting portion mounts a first friction member. The second brake arm has a second coupling portion, a second actuated portion and a second mounting portion. The second coupling portion includes a second mounting fastener defining a second pivot axis of the first brake arm. The second mounting portion mounts a second friction member. The hydraulic actuation device includes first and second pistons movably disposed in a cylinder housing and operatively coupled to the first and second actuated portions on the first and second brake arms, respectively.

Abstract: A disc brake caliper comprises a caliper main body and an insert member. The caliper main body comprises a first portion, a second portion, a connecting portion, a first hole and a second hole. The connecting portion, the first portion and the second portion are formed as a single unitary member. A banjo fixing member is to be attached to the first hole. The second hole is provided apart from the first hole and extending from the first portion to the connecting portion so as to at least partially overlap the slit in the connecting portion. The insert member is configured to be inserted into the second hole. The insert member extends from the first portion to the connecting portion so as to at least partially overlap the slit in the second hole.

Abstract: A bicycle component fixing structure has a fixing nut that is configured to be coupled to a handlebar clamp and a fixing bolt. The fixing nut includes a threaded bore with an entrance opening and an exit opening. The threaded bore has a first axial length between the entrance and exit openings. The fixing nut defines a bolt shaft receiving space that is disposed adjacent the bolt exit opening. The fixing bolt includes a head and a shaft. The shaft has a non-threaded portion disposed between first and second threaded portions. The first threaded portion is disposed closer to the head of the fixing bolt than the second threaded portion. The first and second threaded portions threadedly engage the threaded bore of the fixing nut. The non-threaded portion has a second axial length that is greater than the first axial length of the threaded bore of the fixing nut.

Abstract: A dual hydraulic controller apparatus comprises a housing, a first master cylinder disposed at the housing, and a second master cylinder disposed at the housing and coupled to the first master cylinder. The first master cylinder includes a first hydraulic chamber and a first piston disposed in the first hydraulic chamber for reciprocal movement therein. The second master cylinder includes a second hydraulic chamber and a second piston disposed in the second hydraulic chamber for reciprocal movement therein. A first operating member is coupled to the first piston for reciprocating the first piston, and a second operating member is coupled to the second piston for reciprocating the second piston.