After some research and the good reviews on Amazon, I decided to purchase this bracket. It is indeed touted as motorcycle mount. At the time of purchase I was driving a Yamaha R6 with a 4 cylinder engine. The holder was quickly and easily installed (lock nuts) and has initially held perfectly. But then came a change of the motorcycle on a KTM Duke 690 R with 1-cylinder engine. The bracket also here first bombproof. After the first tour, however, I noticed when stopping the lack of mobile phone shell. The engine vibrations were too much for the good piece. Impressed by the brute force and the technical performance of KTM had a good laugh, I and my friend. Fortunately, the phone was in the leather suit.
Thus, I have to say as a conclusion, unfortunately: Bicycles determined ideal and certainly for laufruhigere motorcycles. 1-cylinder riders requiring vibration strong Bikes should however access to another holder. Here denied the clip-on bracket of the dish. Despite Made in Germany.