Abstract: What is disclosed is a bicycle frame (1) comprising a seat tube (4) in which a saddle pillar (2) for a saddle is at least partially held, wherein the saddle pillar (2) or the main tube (12) thereof is adapted for translatory movement and height-adjustment relative to the bicycle frame (1). In this case, a rotation prevention device and a locking device, in particular a seat device, are fastened on the seat tube (4). Both securing devices act between the seat tube (4) and the main tube (12) in a form-fitting manner. In this case, the device for securing against rotation engages permanently in the main tube and the latching device can engage in, and can be disengaged from, the main tube.

Abstract: What is disclosed is a bicycle frame (1) comprising a seat tube (4) in which a saddle pillar (2) for a saddle is at least partially held, wherein the saddle pillar (2) or the main tube (12) thereof is adapted fro translatory movement and height-adjustment relative to the bicycle frame (1). In this case, a rotation prevention means and a locking device, in particular a seat device, are fastened on the seat tube (4). Both securing means act between the seat tube (4) and the main tube (12) in a form-fitting manner. In this case, the means of securing against rotation engages permanently in the main tube and the latching device can engage in, and can be disengaged from, the main tube.

Abstract: A spring fork, in particular for bicycles, with a suspension system and a hydraulic damping system, includes a compression stage damping system (6) for a spring deflection process and a traction stage damping system (5) for a rebound process. At least one piston (3, 16, 27) is provided, which is located in the cylinder (2), and at least one connecting channel (17, 17a) is provided which connects the cylinder chambers located on both sides of the piston and is intended for the overflow of hydraulic oil (21). The compression stage damping system (6), which is activated during the spring deflection process, can be blocked by closing the connecting passage (lockout). At least with the compression stage damping system (6) blocked and, if appropriate, also with the traction stage damping system (5) also blocked, a bypass channel (11, 20, 20a) which has a reduced cross-section in comparison to the connecting channel (17, 17a) is opened.

Abstract: A pneumatic spring device (1) for limiting the impact response of a vehicle wheel is provided, with at least one piston-cylinder arrangement (2) which has a piston (3) mounted in an axially displaceable manner in an internal cavity (5) of the cylinder (4), wherein the cylinder (4) is closed at its end regions which face away from each other by end walls (6) which are arranged at a fixed distance from one another. The piston (3) is connected to a piston rod (7) which passes through the end wall (6) and is guided in a sealing manner in the latter, wherein working spaces (8, 8?) which are delimited from each other on both sides of the piston (3) by the piston (3) and are formed as piston space (8) and piston rod space (8?) , which are filled with a compressible medium. The working spaces (8, 8?) can be connected to each other by a connecting device (10).

Abstract: A shifting device, particularly for bicycle gearshifts, having an attachment device (2) for the installation of the shifting device on a handle bar (3) or similar steering unit, and having a shifting lever (10) for manual operation. The shifting device has a single shifting lever (10) for both shifting directions. The shifting lever (10) is pivotally supported about two different axes (6, 15), and one shifting direction is associated with each pivot axis (6, 15).

Abstract: A spring fork, in particular for bicycles, with a suspension system and a hydraulic damping system, wherein a compression stage damping system (6) is provided for a spring deflection process and a traction stage damping system (5) is provided for a rebound process. At least one piston (3, 16, 27) is provided, which is located in the cylinder (2), and at least one connecting passage (17, 17a) is provided which connects the cylinder chambers located on both sides of the piston and is intended for the overflow of hydraulic medium (21). The compression stage damping system (6) which is activated during the spring deflection process can be blocked by closing the connecting passage (lockout). At least with the compression stage damping system (6) blocked, if appropriate also with the traction stage damping system (5) also blocked, a bypass passage (11, 20, 20a) which has a reduced cross-section in comparison to the connecting passage (17, 17a) is opened.

Abstract: An axle arrangement (1) for two-wheelers, particularly for bicycles, wherein the arrangement includes a quick-release axle (2) having an axle (6) as the supporting part for a hub (7), wherein the axle can be inserted in receiving or dropout ends (3, 4) of a fork, a linkage, a rear end or similar mount. The axle has a threaded end (16) and a quick-release fastener (9) with a tensioning lever (10) on the other end. One of the receiving ends (3, 4), or an intermediate supporting part (13, 22) that can be connected to the dropout end, has a screw thread (15) for screwing in the one threaded end (16) of the axle (6). In addition, an adjustable stop may be provided for the purpose of limiting the screw-in depth of the threaded axle end (16) in the screw thread (15) of the receiving end (4) or in the screw thread (15) of the intermediate supporting part connected to the receiving end.

Abstract: A shock absorber for a suspension fork or a suspension unit, especially for bicycles, with a damping space (4) filled with damping fluid (5), and a rebound piston (8) that engages in the damping space (4) and moves relative to the damping space for damping the rebound. A reservoir (14) receives displaced damping fluid for downward a deflection. A compression piston (16) is arranged in the damping space (4) for damping the compression. Through the arrangement of the compression damping unit in the form of a compression piston within the damping space, the construction of the shock absorber is significantly simplified, because the damping fluid no longer has to be guided through a channel in the rebound piston rod to the remote compression damper.