Abstract: A bicycle component for an at least partially muscle-powered bicycle, including a seat post device adjustable between two positions, with two support members telescopically movable relative to one another in the axial direction namely, a first support member and a second support member. The bicycle component has an anti-twist protection with a clamping element that non-rotatably couples the support members together, and which is displaceably received in a guiding groove, so that rotational movement of the first support member relative to the second support member can be at least partially blocked. The anti-twist protection includes a spline device with a spline unit that can be pressed against the clamping element in the axial direction. By pressing the clamping element and the spline unit together, the clamping element can be moved relative to the guiding groove transverse to the axial direction.

Abstract: A method of manufacturing a bicycle component having a component body formed at least partially of a fibrous composite material in a shaping mold. A shaping area of the shaping mold which serves to shape an outer section of the component body is provided with at least one intended surface roughness. At the same time, an intentional surface roughness is provided for the outer section by means of the surface roughness of the shaping area during manufacture of the outer section, to inhibit surface imperfections of the shaped outer section.

Abstract: A wheel component for sports and racing bicycles with an annular tire and a central tread surface, which in proper use in straight-ahead travel on a plane ground circumferentially makes contact with the surface of the ground, and which opens up a central longitudinal sectional plane. Planar aero elements are configured on the surface of the annular tire, laterally spaced apart from the longitudinal sectional plane. The aero elements are configured as depressions in the surface of the tire and are disposed on the side surfaces and define angular bands rotating on the side surfaces. The surface proportion of the aero elements to the surface of an angular band is larger than 5% and less than 25%.

Abstract: A bicycle and method and bicycle assembly for a bicycle including a control device and at least one bicycle component whose operating state is variable during operation. An acoustic device with a sound converter is included for outputting information, controlled by the control device, on the operating state of the bicycle component by means of the acoustic device, and/or for capturing noises by means of the acoustic device and converting these to noise signals and utilizing them for controlling.

Abstract: A hub for partially muscle-powered vehicles, including a hollow hub axle with a cylindrical inner through hole for the passage of a clamping axle, a hub shell rotatably supported relative to the hub axle by two hub bearings, a rotor rotatably supported relative to the hub axle, and a freewheel device with a hub-side freewheel component and a rotor-side freewheel component, each having axial engagement components for engagement with one another. The hub shell is rotatably supported relative to the hub axle in a rotor-side end region by a rotor-side hub bearing, and in an opposite end region of the hub shell by another hub bearing. The hub-side freewheel component is non-rotatably connected with the hub shell. The rotor-side freewheel component is non-rotatably connected with the rotor and is movable in the axial direction relative to the rotor and the hub shell between a freewheel position and an engagement position.

Abstract: A hub for a bicycle includes a hub shell and an axle device. The hub shell is supported rotatably relative to the axle device by way of bearing devices. A bearing device is configured as a roller bearing, and includes two bearing rings with rolling members disposed between, and is sealed axially outwardly. Between the bearing rings, the roller bearing includes a modular unit, at which a sealing unit is configured for laterally sealing the roller bearing, and including guide units protruding laterally inwardly from the modular unit for guiding the rolling members.

Abstract: A method for capturing and evaluating sensor data while riding a bicycle on a path and a bicycle component, including at least one barometric pressure sensor for capturing an air pressure signal for the ambient pressure on the bicycle during the ride, at least one stagnation pressure sensor for determining at least one stagnation pressure value on the bicycle during the ride, and a computer which is configured and set up to derive on the bicycle during the ride from the air pressure signal, a corrected ambient pressure value for the ambient pressure, taking into account the obtained stagnation pressure value.

Abstract: A clamping mechanism for mounting and demounting bicycle components of at least partially muscle-powered two-wheeled vehicles such as bicycles, including at least one operating lever and a clamping component. The clamping mechanism includes two clamping parts, one of which clamping parts is a clamping sleeve and connected with the operating lever, and another of which clamping parts is formed at the clamping component. The operating lever can be moved from an engagement position; in which it is non-rotatably connected with the clamping component to a rotary position in which it is freely rotatable relative to the clamping component. In the rotary position, the operating lever is disposed closer to the clamping component than in the engagement position.

Abstract: A hub for partially muscle-powered vehicles, including a hollow hub axle with a cylindrical inner through hole for the passage of a clamping axle, a hub shell rotatably supported relative to the hub axle by two hub bearings, a rotor rotatably supported relative to the hub axle, and a freewheel device with a hub-side freewheel component and a rotor-side freewheel component, each having axial engagement components for engagement with one another. The hub shell is rotatably supported relative to the hub axle in a rotor-side end region by a rotor-side hub bearing, and in an opposite end region of the hub shell by another hub bearing. The hub-side freewheel component is non-rotatably connected with the hub shell. The rotor-side freewheel component is non-rotatably connected with the rotor and is movable in the axial direction relative to the rotor and the hub shell between a freewheel position and an engagement position.

Abstract: A wheel for a racing bicycle including a rim with a rim body having a rim well and lateral rim flanks provided with rim flanges, the rim flanges showing bulges protruding inwardly, each defining an undercut at the pertaining rim flange. A tire with two circumferential tire beads is accommodated on the rim body between the rim flanges, the tire beads bearing against the inside of the rim flanges and entering the undercut at the bulges of the rim flanges. A tire retaining device is included which is disposed in the internal space between the tire and the rim well. The tire retaining device includes an insert member having a hollow space that extends between the tire beads and contains a radially outwardly peripheral wall and a radially inwardly peripheral wall, wherein at least the radially inwardly peripheral wall extends continuously across an inner axial width of the insert member.

Abstract: A damper device for a bicycle having a housing extending in the axial direction and disposed therein, a chamber which forms a chamber volume that is sealed outwardly. The chamber volume extends in the axial direction from a first end to a second end. In the axial direction, at least one adjustment member is rotatably disposed between the ends of the chamber volume. The adjustment member is configured as an annular member and is rotatably received at the housing and surrounds at least part of the housing. By way of movement of the adjustment member, at least one operational setting of the damper device is changeable by means of a mechanical transmitting device.

Abstract: A bicycle component for an at least partially muscle-powered bicycle with at least one freewheel unit including a freewheel component and a support unit and a spring unit, the freewheel component containing a tubular body section extending around a central axis and configured hollow showing a non-round outer contour for non-rotatable and axially displaceable coupling and a front surface with axial engagement components. The spring unit urges the freewheel component and the support unit apart in an axial direction of the central axis. The freewheel component, the support unit, and the spring unit form an assembly suitable for pre-assembly, and the spring unit is attached to the freewheel component and the support unit.

Abstract: Bicycle hub includes a shell rotatably supported relative to a hub axle, a rotor rotatably supported by two rotor bearings, and a freewheel device having two interacting freewheel components: a hub-side freewheel component and a rotor-side freewheel component. The freewheel components each include axial engagement elements and are axially movable relative to one another between a freewheel position and an engaging, driving torque position. The hub-side freewheel component includes a threaded axial body section and is screwed into the hub shell. The hub-side freewheel component has an axial, annular surface on which the axial engagement elements are configured. The rolling members of a hub bearing show a defined accommodation inside the hub-side freewheel component to support the shell relative to the hub axle. The hub-side freewheel component includes a tool contour which couples to an adapted tool for releasing the screw connection of the hub-side freewheel component with the shell.

Abstract: A hub for bicycles or the like including a hub shell which is rotatably supported relative to a hub axle, a rotor rotatably supported relative to the hub axle, and a freewheel device having two interacting freewheel components namely, a hub-side freewheel component and a rotor-side freewheel component. The two freewheel components each contain axial engagement components. The hub-side freewheel component is non-rotatably and axially fixedly connected with the hub shell. The rotor-side freewheel component is non-rotatably connected with the rotor and is movable in the axial direction relative to the rotor and the hub shell between a freewheel position and an engagement position. Rolling members are provided for defined accommodation in the hub-side freewheel component to support the hub shell relative to the hub axle. The hub-side freewheel component is connected with the hub shell through a multiple thread having at least two separate, axially spaced apart thread grooves.

Abstract: A shock device for an at least partially muscle-powered two-wheeled vehicle, including at least one tube system having two telescopic tubes, the tube system extending from a first end to a second end. A suspension system is provided which is effective between the two ends and which biases the two tubes to an extended position. The suspension system includes a positive air spring and an independent, series-connected supplementary spring. Both the positive air spring and the supplementary spring bias the tube system to the extended position. The supplementary spring shows a lower breakaway force than does the positive air spring, and the ratio of the suspension travel of the positive air spring to the suspension travel of the supplementary spring is higher than 4:1.

Abstract: A bicycle component includes a hub shell for a wheel of an at least partially muscle-powered bicycle, wherein the hub shell is rotatably supported by at least one bearing device. An adapter unit is disposed on one end of the hub shell. The adapter unit includes an inner stopper having an inner stop face for transferring a clamping force to the bearing device and an outer stopper with an outer stop face transmitting at least part of the clamping force. The adapter unit includes a first and a second stopper component transmitting the clamping force.

Abstract: A method and a device are provided for manufacturing spokes from a wire material, in particular for at least partially muscle-powered two-wheeled vehicles. The spokes include a spoke shaft having at least two shaft sections. The shaft sections differ in at least one cross-section. For shaping the cross-sections, the wire material is reshaped at least in sections by means of a shaping tool. The relative position of the wire material relative to the shaping tool is varied in the axial direction during reshaping. For shaping the cross-sections in the two shaft sections the relative position of the wire material relative to the shaping tool is varied by way of different positioning movements.

Abstract: A bicycle component for an at least partially muscle-powered bicycle. The bicycle component includes a seat post device telescopically adjustable between at least two positions for adjusting the saddle height, and a locking device for locking the seat post device in at least one of the positions. The seat post device has two support members movable relative to one another namely, a first and a second support member, the second support member receiving a saddle. The first support member is disposed at least in sections within the second support member. For telescoping the seat post device, the second support member can at least in sections move over the first support member.

Abstract: A hub and a wheel having such a hub. The hub includes a hub shell and an axle to rotatably receive the hub shell. The hub shell is provided with circumferential hub flanges for accommodation and defined orientation of a plurality of spokes. Each of the spokes includes a spoke body and a spoke head. The hub flanges include a plurality of accommodation sections to receive one spoke head each. The accommodation sections are axially disposed on the hub flanges. Each of the accommodation sections has one spoke feed-through assigned to it, through which an accommodated spoke can be guided out of the accommodation section. Two spoke feed-throughs each are provided with one joint and circumferentially closed outlet opening in the hub flanges. The hub flanges enclose the outlet opening integrally.