Abstract: A handlebar assembly for a vehicle comprising at least one handlebar pipe extending along an axis and having a receiving portion with a circular cross-section. At least one stop means is fixed relative to the receiving portion. At least one shifting means is slidable via an opening therein onto the receiving portion, and can be arranged so as to rest, rotatably about the handlebar axis, against the receiving portion and against the stop means. An adjusting means is arranged on a side of the shifting means remote from the stop means so as to rest against the shifting means, and can be detachably fixed to the handlebar pipe. When detached from the handlebar pipe, the adjusting means releases the shifting means so as to be rotatable about the axis, and when fixed to the handlebar pipe, the adjusting means fixes the shifting means against rotation about the axis.

Abstract: A handlebar assembly for a vehicle comprising at least one handlebar pipe extending along an axis and having a receiving portion with a circular cross-section. At least one stop means is fixed relative to the receiving portion. At least one shifting means is slidable via an opening therein onto the receiving portion, and can be arranged so as to rest, rotatably about the handlebar axis, against the receiving portion and against the stop means. An adjusting means is arranged on a side of the shifting means remote from the stop means so as to rest against the shifting means, and can be detachably fixed to the handlebar pipe. When detached from the handlebar pipe, the adjusting means releases the shifting means so as to be rotatable about the axis, and when fixed to the handlebar pipe, the adjusting means fixes the shifting means against rotation about the axis.

Abstract: A single-track vehicle has a vehicle state display and a controller. The vehicle state display includes at least one projection surface, a cover, and at least one lighting device. The at least one lighting device is coupled to the controller, and the at least one lighting device and the cover are arranged such that light emitted from the lighting device can only be perceived indirectly from outside of the vehicle. The lighting device is designed to generate at least one first light pattern corresponding to a first vehicle state and a second light pattern corresponding to a second vehicle state on the projection surface on the basis of control signals of the controller. The first light pattern and the second light pattern are different.

Abstract: The aim of the invention to provide a less complex method for the production of A-ring aromatized acetyl minocyclines of the formula (I), wherein R1 to R5=acetyl and/or H, which can also be used on an industrial scale, is achieved in that minocycline hydrochloride is reacted with acetanhydride in the presence of a proton catcher, the reaction product is subjected to chromatographic filtration using a carrier material and an eluant, the eluant is distilled off, and the product is subsequently cleaned by recrystallization.