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 control device for a bicycle, has a first body adapted to be attached to a bicycle handlebar, at least one control member of at least one bicycle component, and a second body, distinct from the first body, connected to the first body to increase a grip surface of the control device and/or to vary the relative position of the at least one control member with respect to the handlebar of the bicycle, so as to adapt the control device to the size of the cyclist's hand.

Abstract: A bicycle gear shifter that has a control pin and a cable-winding bush mounted coaxially and rotatable in opposite angular directions. A ball-carrying bush is mounted coaxially for rotation as a unit with the cable-winding bush and is equipped with at least one slider. An indexing bush is rotatable with respect to the control pin is provided with a plurality of stop positions engageable during a relative rotation between the ball-carrying bush and the indexing bush, each stop position defining a stable angular position for the cable-winding bush. A pointer is switchable between an active position in which it interacts with the indexing bush to limit the angular play thereof with respect to the casing and a passive position in which it does not interact with the indexing bush and does not limit the angular position between the indexing bush and the casing.

Abstract: A bicycle free wheel has a first annular body, at least partially ferromagnetic, configured to be rotatable with sprockets of a bicycle and comprising a first crown gear. A second annular body configured to be rotatable with a rear wheel of a bicycle has a second crown gear matching with and facing towards the first crown gear. The first annular body is axially mobile with respect to the second annular body between an engagement condition in which the first crown gear is coupled with the second crown gear and a disengagement condition where they are decoupled. At least one magnetic body is arranged radially externally with respect to the first annular body, so that the first annular body in the disengagement condition is at least partially contained in the axial space occupied by the magnetic body.

Abstract: A brake disc having a first component made of a first material, a braking track configured to cooperate with brake pads, and a second component made of a second material and having (i) a radially inner annular portion for coupling with a hub of a bicycle wheel and (ii) a plurality of radially outer portions for connecting to the first component at a respective plurality of connection portions of the first component. The first component comprises a plurality of connection arms that extend from the braking track towards the predetermined rotation axis (X) and that are distinct from the plurality of connection portions, wherein at least one of the connection arms of the first component and at least one of the radially outer connection portions of the second component are coupled together through at least one shape coupling.

Abstract: A cassette adapted for mounting on a bicycle rear wheel hub and a by a mounting body for positioning the assembly on a bicycle rear wheel hub. The cassette has a plurality of adjacent sprockets fixedly connected to one another along an axis of the cassette. The cassette has an axial centering opening for centering on the mounting body without transmission of torque, and a plurality of attachment areas positioned a greater radial distance from the axis of the cassette than the radius of the centering opening for attachment to the mounting body.

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 sheet compound (1) is disclosed, comprising a first group of conglomerates (3) of fiber segments (5) and a matrix (6) of polymeric material, the conglomerates (3) of the first group having a random orientation, and at least one second group of conglomerates (4) of fiber segments (5) and a matrix (6) of polymeric material, the conglomerates (4) of the second group having a prevailing orientation of a direction of maximum tensile strength (FR) thereof along a respective predetermined direction (FB) in said geometric plane (P), said at least one second group of conglomerates (4) being distinguishable from the first group of conglomerates (3) by at least one characteristic other than orientation. A process and an installation for making such a material, as well as a molded object made from such a material are also disclosed.

Abstract: A bicycle brake including a first lever and a second lever is provided. A roller for mutual coupling of the first lever and second lever is pivoted to one of said first lever and second lever and is in rolling contact with a surface portion of the other between said first lever and second lever. The surface portion has a profile defined by a curve that passes by a predetermined number of points of the roller. Each of the points are defined as function of the position taken by the roller during a respective rotation of the roller about a first rotation axis (X1) of the first lever by a respective predetermined angle of rotation and about a second rotation axis (X2) of the second lever by a respective angle substantially equal to said respective predetermined angle of rotation.

Abstract: A rim of a bicycle wheel with a wall that, viewed in a radial section, extends along a closed line enclosing at least one annular cavity that is concentric with the rim. Partitioning the rim in three slices of equal size along the axis of rotation yields wall projections that have axially central portions that extend radially outwards to a greater extent than axially outer portions.

Abstract: A composite rim for a bicycle wheel that has a wall of structural fibers incorporated in a thermosetting polymeric material and a plurality of spoke attachment seats. The composite material includes at least one layer of woven bi-directional fibers where some fibers are in a nominal direction substantially parallel to the circumferential direction of the rim and some fibers are substantially orthogonal to the circumferential direction of the rim.

Abstract: A bicycle disc or spider wheel including: a hub; a rim having a radially outer tire-coupling region, a first sidewall, a second sidewall; an axis of rotation; and a median plane. A pair of pretensioned disc or spider wheel-type structural elements are integral with the hub and with the rim. The first sidewall extends on a first side of the wheel, with respect to the median plane, on which a component of a motion transmission system or, when there is none, a disc of a disc brake is provided at the hub, and the second sidewall extends on the opposite side, with respect to the median plane. The first sidewall of the rim has a minimum distance from the median plane that is smaller than that of the second sidewall of the rim.

Abstract: A sprocket assembly component with at least one first toothed wheel configured to have the most teeth of the sprocket assembly. The first toothed wheel has an axially inner surface and a supporting assembly that extends in the axial direction up to a free end arranged axially more internally with respect to the axially inner surface of the first toothed wheel.

Abstract: A bicycle electric rear derailleur that has a support body configured to be mounted on a bicycle frame at an assembly of wheels coaxial with a hub of a rear wheel of the bicycle, a movable body, having a chain guide and linkage between the movable body and the support body. The linkage between the movable body and the support body comprises an inner connecting rod and an outer connecting rod. The ends of the rods are articulated to the support body and to the movable body to form an articulated parallelogram. A battery power supply unit is supported by one of the inner connecting rod and the outer connecting rod.

Abstract: A bearing cup for a bicycle bottom bracket assembly is disclosed. The bearing cup comprises an annular body having a radially outer substantially cylindrical surface portion configured to be coupled with the frame of the bicycle and a radially inner substantially cylindrical surface portion defining a housing seat for a bearing. A plurality of ribs extend radially inwards from said radially inner substantially cylindrical surface portion. The plurality of ribs are configured to be coupled with interference with said bearing. In another embodiment, a bicycle bottom bracket assembly is disclosed that includes the aforementioned bearing cup and a bearing configured to be housed inside the bearing cup.

Abstract: The device for mounting a bicycle wheel comprises a pin having a longitudinal axial through hole. A first free end portion of the pin has a threading. A second free end has a pin head. A lever for rotating the pin is housed in the axial through hole and is axially moveable between two operative positions. The lever has a first lever element housed in the axial through hole in the two operative positions, and a second lever element, pivoted to the first lever element about an axis perpendicular to the longitudinal axis, that is housed in the axial through hole when the lever is a first operative position, and that is positioned outside the axial through hole when the lever is in a second operative position for allowing a torque transfer between lever and pin following the rotation of the second lever element about the longitudinal axis.

Abstract: A bicycle wheel hub for mounting a brake disc in relation to a spoke-holding flange. The hub has a connection portion with a first annular sector that is axially external with respect to the spoke-holding flange and a second annular sector that is axially external with respect to the first annular sector. A circumferential groove axially arranged between the first and the second annular sectors.

Abstract: The invention relates to a bicycle brake disc comprising a carrier having a connection portion configured for connection to a hub of a wheel of the bicycle rotatable about a rotation axis (X) and a plurality of coupling seats, a rotor comprising a radially outer braking track and a plurality of radially inner coupling seats that at least partially axially overlap the coupling seats of the carrier to define connection areas, wherein said rotor and said carrier are joined together by mechanical joints active in said connection areas. The constraint between at least one coupling seat of the rotor and a coupling seat of the carrier in a respective connection area has a degree of translational freedom.

Abstract: The described actuation device comprises a casing, intended for the attachment to the handlebar of the bicycle, a cable-winding bobbin, angularly mobile in the casing about a main axis of the device, a first driving mechanism, acting on the bobbin to rotate it in a first angular direction, a second driving mechanism, acting on the bobbin to rotate it in a second angular direction opposite the first, as well as indexer assembly for removably holding the bobbin in predetermined angular positions. In accordance with the invention, the indexer assembly comprise first countering member, to counter the rotation of the bobbin in the first direction, and second countering member, distinct from the first countering member, to counter the rotation of the bobbin in the second direction. Asymmetric operation is thus obtained which allows active actuation to be set both for upward gearshifting and for downward gearshifting.

Abstract: A bicycle electronic system comprising a battery unit, at least one operating unit and a power supply and communication bus, each of said units being connected to said bus is provided. The system comprises first means or controller for switching-off/(re)switching-on able to be activated/deactivated by a user and second means or controller for switching-off/(re)switching-on suitable for disconnecting/connecting said battery unit from/to said power supply and communication bus in response to the activation/deactivation of said first means or controller for switching-off/(re)switching-on. A battery unit and a method for switching-off/(re)switching-on a bicycle electronic system are also described.