Abstract: A bicycle gearshift is operated by imposing on the chain guide a primary displacement in the axial direction with respect to a cogset, to move the chain between the sprockets. Simultaneously with imposing on the primary displacement imposing on the chain guide a secondary displacement in the radial direction with respect to the cogset. The secondary displacement is of a greater size when the primary displacement takes place in the area of the cogset with the larger sprockets whereas it is of a smaller size when the primary displacement takes place in the area of the cogset with the smaller sprockets.

Abstract: A spoked bicycle wheel having a rim at least partially comprised of a composite material. The rim has at least one spoke attachment chamber with a plurality of spoke attachment holes. The wheel has a plurality of spokes coupled with the rim and a spoke attachment element partially inserted in a respective spoke attachment hole. The wheel includes a holding element that prevents the movement of said spoke attachment element along a radially outer direction. The spoke attachment element has a holding surface configured for abutment against the holding element.

Abstract: A bicycle crankarm the bicycle transmission side that has a main body length measured along a length from a crankset's crankarm rotation axis to a pedal axis. The crankarm has at least one stress/strain detector oriented along the length direction at a fixed distance, measured from the center of the stress/strain detector to the rotation axis of the crankarm, such that the ratio of the distance and the length is in the range between 0.45-0.65.

Abstract: A cogset having a plurality of axially adjacent sprockets between a first sprocket with a minimum primitive circumference and a last sprocket with a maximum primitive circumference and the primitive circumferences are expressed as an integer dimensionless value equal to the ratio between the primitive circumference itself and a fixed length equal to a chain pitch. The difference in value between the primitive circumference of the sprocket next to a predetermined sprocket and the primitive circumference of the predetermined sprocket is defined as the jump associated with the predetermined sprocket. A first sprocket subset comprises the first sprocket and at least the next three sprockets and a second sprocket subset comprises at least three adjacent sprockets that do not include the first sprocket. The jump associated with all of the sprockets of the first subset is equal to 1, whereas the jump associated with the sprockets of the second subset increases by 1 from one sprocket to the next.

Abstract: A bicycle crankarm has a rechargeable battery cell and a recharging port for the battery cell in a face of the crankarm body.

Abstract: An actuator device for a bicycle gearshift includes an actuation linkage, a drive member configured to control the deformation of the actuation linkage and comprising a motion transmission element having a rotation axis (X), and a fastening/release mechanism operatively arranged between the motion transmission element and a connection rod of the actuation linkage. The fastening/release mechanism has a first member rotatable about the rotation axis (X) as a unit with said motion transmission element, a second member rotatable about the rotation axis (X) together with said connection rod, an elastic element operatively arranged between the first member and the second member and that exerts a predetermined pre-load stress on the first member and on the second member.

Abstract: A bicycle gearshift including a first body associated with a bicycle frame, a second body connected to, and moveable relative to, the first body, a rocker arm rotatably connected to the second body at a rotation axis, and a shaft extending coaxially to this axis and fixedly associated with the rocker arm. A unidirectional rotation device is arranged between the shaft and second body to allow rotation of the shaft relative to the second body only in a first rotation direction. An elastic element is associated with the second body and the rocker arm to push the rocker arm in rotation about the axis in the first rotation direction. A damping device is arranged between the shaft and unidirectional rotation device to generate a friction force when the rocker arm is rotated in a second, opposite rotation direction, and has a friction surface in contact with the unidirectional rotation device.

Abstract: The invention relates to a toothed wheel assembly for a cassette having a first toothed wheel and a second toothed wheel that are concentric. The second tooth wheel has a greater number of teeth than the first toothed wheel; a radially inner cylindrical portion to engage a sprocket support body; a plurality of spokes comprising respective first constraining portions to the first toothed wheel and second constraining portions to the radially inner cylindrical portion; and a plurality of connection bodies that connect the first. The second toothed wheel has an axially-extending portion with at least one pair of spokes having connection bodies that include axially-extending portions in the circumferential direction and at least partially contained in the minimum circumferential extension a respective spoke.

Abstract: A bicycle component comprising a stress/strain sensor aligned according to a stress/strain to be detected, and a temperature sensor associated with said stress/strain sensor, wherein said stress/strain sensor and said temperature sensor lie in planes that do not coincide with one another and are not parallel to each another.

Abstract: A composite bicycle rim, and a process for manufacturing the rim, having a plurality of perforated spoke-attachment seats having spaced apart first and second areas of cut structural fibers. The second area has both end portions of cut structural fibers having a longitudinal dimension greater than the first area's cut structural fibers and continuous structural fibers. At least some of the end portions of the second area's cut structural fibers are mutually juxtaposed or interposed with respect to the second area's continuous structural fibers.

Abstract: A bicycle wheel rim made at least partially of a stratified composite material comprising structural fibers incorporated in a polymeric matrix. At least one opening, which passes through at least one first layer of composite material, is provided and at least one spoke attachment hole, which passes through at least one second layer of composite material, is also provided. The spoke attachment hole is completely contained within the opening in the first layer. A related manufacturing process is also described.

Abstract: The present invention relates to a motorized hub assembly for a bicycle wheel. The assembly has a hub shaft extending along a longitudinal axis with a cavity to receive a quick release axle. A bearing having a radially inner ring is arranged radially outside the hub shaft. A hub body is rotatably mounted on the hub shaft about the longitudinal axis and an electric motor is arranged inside the hub body. A routing opening for passage of electrical conductors for the electric motor pass through a routing opening arranged radially between the inner ring of the bearing and the hub shaft.

Abstract: A process for manufacturing a spoked bicycle wheel, comprising the steps of providing a rim element having a spoke attachment chamber; providing a spoke attachment assembly for coupling to a respective spoke, inserting the spoke attachment assembly through an opening of the spoke attachment chamber along an insertion direction that is inclined with respect to the rim element and moving the spoke attachment assembly along the insertion direction until a stem of the spoke attachment assembly is at the surface of the spoke attachment chamber; moving the spoke attachment assembly along the surface of the spoke attachment chamber towards a spoke attachment seats; inserting the stem in the spoke attachment seat; and, constraining the spoke attachment assembly in the spoke attachment seat. The steps are repeated to couple a respective spoke attachment assembly to each of the plurality of spoke attachment seats. The invention also relates to a spoked bicycle wheel produced by the above process.

Abstract: A spoke attachment assembly configured to couple a rim to the spokes of a spoked bicycle wheel. The spoke attachment assembly comprises a nipple having an enlarged head and a stem provided with a coupling portion for coupling with a spoke, at least one shaped washer associated with the nipple and configured to abut on one side with the enlarged head of the nipple and, on the opposite side, with the rim and holding means configured to hold said at least one shaped washer associated with the nipple. The invention also relates to a spoked bicycle wheel and to a process for manufacturing such a wheel.

Abstract: A bicycle component comprising a stress/strain sensor aligned according to a stress/strain to be detected, and a temperature sensor associated with said stress/strain sensor, wherein said stress/strain sensor and said temperature sensor lie in planes that do not coincide with one another and are not parallel to each another.

Abstract: A mounting body and a cassette suitable for mounting on a bicycle rear wheel hub in combination with the body. The body has an inner radial portion for coupling with rear wheel hub and an outer radial portion for mounting the cassette and a portion with a plurality of attachment areas for attachment to a cassette. The cassette has an axial centering opening for centering on the mounting body and a plurality of cassette attachment areas that align with the mounting body attachment areas to unite the mounting body and cassette for transmission of pedaling torque.

Abstract: A bicycle derailleur comprising a chain guide movable between intermediate positions. An actuation arm associated with the derailleur has a cable seat formed it. A cable-clamping washer includes with a cable-bending appendage that is insertable in the seat of the actuation arm. The actuation arm cooperates with the cable-bending appendage to lock an actuation cable in the desired position.

Abstract: The disclosure relates to a hydraulic sealing body comprising a radially inner surface defining a through-cavity and an annular element projecting in a radially inner direction from said radially inner surface, the annular element comprising a first annular abutment surface configured to receive in contact relationship a head portion of a coupling terminal and a second annular abutment surface, axially opposite to the first, configured to receive in contact relationship an axial end of a hydraulic hose.

Abstract: The invention relates to a method of operating an electronic device associated with a related bicycle component and comprising a processor and a wake unit, the method comprising the following steps executable by the processor of the electronic device: operating alternately in standby mode and in running mode, switching from the standby mode to the running mode upon receiving a wake signal from the wake unit at predetermined wake conditions, and before switching from the running mode to the standby mode, modifying the configuration of the wake unit by updating the predetermined wake conditions, such that the subsequent wake signal is sent to the processor at updated wake conditions.

Abstract: A bicycle rim is made with a plurality of layered, each of which is formed of structural fibres incorporated in a polymeric material. The rim has a radially outer peripheral channel with an upper bridge extending between the wings for holding a tyre. The peripheral channel comprises an inner layered structure, extending between wings and at least one wrapping layered structure, wound on the inner layered structure at least at the end of the wings, the inner layered structure and the wrapping layered structure being included in the plurality of layered structures.