Abstract: A bicycle including a frame with a fork, the fork having dropouts between which a wheel axle is mounted. The wheel axle includes a sensor and/or an electric component arranged to be connected to a control element. A detachable electric connection is provided between the sensor and/or electric component and the control element. The detachable electric connection is positioned between the wheel axle and the thru-axle.

Abstract: Bicycle including a frame with a fork, the fork having dropouts between which a wheel axle is mounted. The wheel axle includes a sensor and/or an electric component arranged to be connected to a control element. A detachable electric connection is provided between the sensor and/or electric component and the control element. The detachable electric connection includes a short range wireless connection.

Abstract: A bicycle includes a transmission having two switchable drives between a driver body on which rear sprockets are positioned and a wheel hub of a rear wheel. The bicycle has actuation elements for switching between drives and operating elements for operating the actuation elements. The bicycle includes only a single front sprocket. The actuation elements are embodied in an electrical version and the operating elements are electrically coupled to the actuation elements. By advantageously selecting the drives of the driver between the cassette housing and wheel hub, a front derailleur may be omitted. The driver allows operation with only little energy, since the chain need not be shifted. consequently, the actuation elements require little energy for changing the drive between the crank axle and the wheel hub of the bicycle, so that it is pre-eminently suitable for these actuation elements and their operation to be executed as an electrical version.

Abstract: A transmission element for transferring torque from a set of sprockets to a bicycle rear wheel hub bearing-supported on a wheel axle is equipped with a first interface for coupling to the sprocket. This first interface is arranged such that it secures the sprocket or the cassette to the driver in axial and/or radial and/or tangential direction. The driver is furthermore equipped with a second interface for coupling to the sprocket. The second interface is arranged such that it secures the sprocket to the driver in axial and/or radial and/or tangential direction. The second interface is then present in a larger diameter than the first interface.

Abstract: A clutch system for a torque transmission. The clutch system includes a first rotatable unit connectable to an input, including at least one first abutment surface and a second rotatable unit connectable to an output, including at least one second abutment surface arranged for selectively engaging the first abutment surface. The first and second abutment surfaces being adapted to each other so as to allow disengaging under load. The system includes a third rotatable unit arranged for selectively being in a first position or a second position relative to the second rotatable unit, wherein at least one retaining member of the third rotatable unit selectively locks the at least one second abutment surface in engagement with the at least one first abutment surface for selectively rotationally coupling the second rotatable unit to the first rotatable unit.

Abstract: A transmission intended to be mounted on a rear wheel axle of a bicycle between a sprocket carrier and a wheel hub has a transmission housing, which is provided with connecting means for the connection of the sprocket carrier to the transmission housing, as well as coupling means for coupling the transmission to the hub. The transmission further has a planetary gear set which is present in the transmission housing and is provided with three rotational members, of which a first rotation body is connected to the transmission housing, a second rotation body is connected to the coupling means, and a third rotation body can be coupled with the wheel axle. The first rotation body is connected via a first clutch to the second rotation body and the third rotation body is connected to a second clutch via which the third rotation body can be connected to the wheel shaft.

Abstract: A rear wheel axle for a bicycle includes a hollow wheel axle and an axle shaft inserted therethrough and torque support elements for supporting torque exerted on the wheel axle on drop outs of a bicycle frame. The torque support elements are formed by a first part of an outside of the axle shaft and a part of an inside of the wheel axle, which parts jointly form a first form locked connection, and are also formed by a second part of the outside of the axle shaft, which together with a bounding wall of a through hole provided in an inserted piece which is fixed in the direction of rotation relative to one of the drop outs, forms a second form locked connection. The first and second parts of the outside of the axle shaft are fixed relative to each other in the direction of rotation of the axle shaft.