Abstract: A suspension fork for a bicycle has a tube system with an inner tube and an outer tube that are movable relative to one another. A damper system with a field-sensitive damping fluid is provided within the tube system. The damper device has a damper chamber that is partitioned to form a first chamber and a second chamber by a movable piston attached to a piston rod. A first throttle valve with a first field generating device and a second throttle valve with a second field generating device enable influencing the first and second throttle valves. First and second switching valves are provided. The first and second throttle valves and the first and second switching valves are interconnected such that in the compression stage there is flow only through the first throttle valve while in the rebound stage the first and second throttle valves are connected in series.

Abstract: A hub is provided for two-wheeled vehicles having a hub axle, a hub body, a rotatable driving device, and having a toothed disk freewheel. The toothed disk freewheel includes a pair of engagement components cooperating with one another, each having at least one axial toothing. The axial toothings are biased to an engaging position via a biasing device. The biasing device is configured as a pulling force device which pulls both axial toothings together.

Abstract: A damper device for a bicycle suspension fork has a magneto-rheological damping medium. A piston partitions a damper chamber into first and second chambers that are connected via a return duct, an adjustable throttle valve, and a transfer duct. A field-generating device generates a magnetic field in a damping duct of the throttle valve. A one-way circuit is provided for the damping medium, with two one-way valves disposed to cause a same direction of circulation of the damping fluid both when the piston rod plunges into and retracts from the damper chamber. A first one-way valves in the piston allows a flow of the damping medium from the second into the first chamber. A second one-way valve in the transfer duct allows a damping medium flow from the transfer duct into the second chamber. The adjustable throttle valve control the plunge and the retraction of the piston rod.

Abstract: A hub for at least partially muscle-powered vehicles having a hub axle, a hub body, a rotatable driving device, and a freewheel device. The freewheel device includes a first and a second engagement component cooperating with one another having at least one axial toothing each. The freewheel device is biased to the engaging position via a magnetic biasing device. A first magnetic device biases the first engagement component and a second magnetic device biases the second engagement component to the engaging position. At least one magnetic component comprises a carrier unit and a multitude of magnetic units disposed thereat.

Abstract: Shock absorber for an at least partially muscle-powered bicycle having a damper device having a first and a second damper chamber assigned thereto which are hydraulically coupled with one another through a damping valve. In the damping valve a flow duct with a field-sensitive, rheological medium is provided. The damping valve has a field generating device assigned to it which serves for generating and controlling a field intensity in the flow duct of the damping valve. The flow duct comprises in the damping valve a collection chamber which is hydraulically connected with the first damper chamber through a plurality of flow apertures, wherein at least one flow aperture is configured as a through hole and at least one flow aperture, as a closable valve opening provided with a one-way valve. The collection chamber is hydraulically connected hydraulically with the second damper chamber via a plurality of fan-type damping ducts each separated from one another by a fan wall.

Abstract: Shock absorber and method for operating a shock absorber for a bicycle wherein a relative motion of a first and a second component interconnected via a damper device is dampened. The damper device comprises a controllable damping valve having at least one field generating device with which a field-sensitive medium can be influenced for influencing a damping force of the damper device by applying a field intensity of the field generating device. A parameter for the current speeds of the first and second components relative to one another is obtained in real time. For damping, a current field intensity to be set is derived in real time by means of the parameter from a characteristic damper curve and by means of the field generating device the field intensity to be currently set is generated in real time for setting in real time a damping force which results from the predetermined characteristic damper curve at the parameter obtained.

Abstract: A hub for two-wheeled vehicles with a hub body and method of manufacturing, wherein the hub body is rotatably supported on the axle via at least one bearing. The hub body includes a first forged component and a second forged component, wherein the first and second forged components are connected with one another through at least one sleeve and wherein both of the forged components have a plurality of fastening flanges protruding outwardly for fastening spoke units.

Abstract: A drive hub for two-wheeled vehicles with a hub body and with a fixed axle and with a sprocket carrier on which a plurality of sprockets is provided. The sprocket carrier is rotatably supported on the axle by way of at least one bearing. The sprocket carrier includes a circumferentially closed sleeve device on which at least one sprocket is disposed radially outwardly and on which two axially spaced bearings are provided radially inwardly for rotatably supporting the sprocket carrier on the axle via the bearings.

Abstract: A damper device for a two-wheeled vehicle and a corresponding method are provided wherein a first damper chamber and a second damper chamber are coupled to one another through at least one flow duct. A ferromagnetic fluid is provided in the flow duct. A magnetic device is assigned to the flow duct to allow exposing at least part of the flow duct to a magnetic field. A magnetic field-generating device is provided wherein a permanent changing of the magnetic field strength of the magnetic device can be carried out through magnetic pulses. In this way, the damper only requires energy for adjusting the damping, normal operation may occur without an external energy supply.

Abstract: Hub for two-wheeled vehicles having a hub axle and a hub body and a rotor and with a toothed disk freewheel comprising a pair of interacting engagement components each comprising one axial toothing. The engagement components are biased in the engagement position via a biasing device. The one of the engagement components is received at the hub body to be non-rotatable and axially displaceable and the other of the engagement components is provided non-rotatable at the rotor for transmitting a rotary motion from the rotor to the hub body in the engagement position of the two engagement components. At least one engagement component is configured as a toothed disk and is provided with the axial toothing and has an axial width which is at least the size of half the outer radius of the axial toothing.

Abstract: Bicycle component and method for assembling a bicycle component comprising several units of which one unit is configured as a fixed unit and at least one unit, as a rotary unit. A fixed unit forms the hub axle and a rotary unit is configured as a hub body. The hub body is provided with a spoke socket for fastening spokes and is rotatably supported relative to the hub axle by means of at least one bearing. At least one separate sealing cap fastened at one of the several units is provided at which a sealed through opening for a unit is provided which unit is rotatable relative to the hub body.

Abstract: A shock absorber for a bicycle has a damper device with first and second damper chambers. The damper chambers are connected by way of a controllable throttle valve. A changeable electronic unit has a control device for controlling the electrically controllable throttle valve. The control device thereby influences the damper characteristics.

Abstract: A shock absorber for a bicycle or another, at least partly muscle-powered, vehicle has a damper device with a damper housing in which a first and a second damper chamber are separated from one another via at least one damper piston. A piston rod connected with the damper piston extends from the damper piston through the second damper chamber out of the damper housing. The first damper chamber is in communication with the second damper chamber via a flow duct that leads through the piston rod out of the damper housing toward at least one throttling device. The flow duct, at the throttling device, has a damping duct provided with a field-sensitive rheological fluid which, by way of a field generating device disposed at the throttling device, can be exposed to a field of a predetermined strength to influence the pass-through flow of the field-sensitive rheological fluid through the throttling device.

Abstract: A suspension system and a method for controlling a suspension system for a muscle-powered two-wheeled vehicle having a damper device with a first damper chamber and a second damper chamber coupled with one another via a controllable damping valve. A sensor is provided for capturing data about a current operational state. An electric control device and a data storage device for controlling the damper device are provided, such that at least one damping characteristic of the damper device can be influenced by a signal from the control device. The control device is configured and organized to provide a teaching mode in which route-related data are stored in the memory. The control device is furthermore configured and organized to provide a repeat mode in which the damper device is controlled according to the route-related data stored in the memory device.

Abstract: A suspension system for a muscle-powered two-wheeled vehicle having a damper device with a first damper chamber and a second damper chamber coupled with one another via a controllable damping valve. A sensor captures data about at least one current state. An electronic control device and a storage device are provided for controlling the damper device. At least one damping characteristic of the damper device can be influenced by a signal from the control device. The damping valve has a field generating device assigned to it which serves to generate and control a field strength in a damping channel of the damping valve. A field-sensitive rheological medium is provided in the damping channel for controlling the damping characteristic of the damper device in dependence on the sensor data.

Abstract: A rim for a bicycle having a rim body including a rim well and a rim base and rim flanks connecting the rim base and the rim well wherein the rim flanks and the rim base consist of a fibrous composite material. A minimum wall thickness of the rim flanks is thinner in one radial region than in another radial region. The rim body is bulbous in cross-section. A maximum height from the rim base to the rim well is less than 1.5 times and in particular less than 1.2 times the maximum width.

Abstract: A damper device for a two-wheeled vehicle and a corresponding method are provided wherein a first damper chamber and a second damper chamber are coupled to one another through at least one flow duct. A ferromagnetic fluid is provided in the flow duct. A magnetic device is assigned to the flow duct to allow exposing at least part of the flow duct to a magnetic field. A magnetic field-generating device is provided wherein a permanent changing of the magnetic field strength of the magnetic device can be carried out through magnetic pulses. In this way, the damper only requires energy for adjusting the damping, normal operation may occur without an external energy supply.

Abstract: Wheel for a vehicle operable by muscular force and in particular for a bicycle with an auxiliary motor and with a hub comprising a hub axle and a hub body rotatably supported relative to the hub axle. Furthermore the wheel comprises a rim with a rim base and a rim well and rim flanks. The rim is connected with the hub through a plurality of spoke devices. Each of the spoke devices comprises one spoke nipple and one spoke. The rim base is provided with passage openings through which the spoke devices extend into the rim. The hub is provided with an electric drive as an auxiliary motor and a ratio of the outer diameter of the hub to the outer diameter of the rim is higher than 1:5. The clear inner diameter of a passage opening is at least 50% larger than an outer diameter of the spoke device at the passage opening.

Abstract: A wheel for a bicycle including a rim and having a hub including a fixed hub axle and a hub body rotatably mounted relative to the hub axle, and having a plurality of spokes disposed between the hub body and the rim to non-rotatably connect the rim with the hub body. The rim includes two rim flanks, a rim well and a rim base with spoke holes, at which the spokes are received. A separate holding member is disposed in each spoke hole, which together with a spoke nipple received at the holding member can be passed through the spoke hole in a tilted position, while in a tilted-back position it contacts the rim and is received therein to be tension-proof so as to fix the spoke to the rim.