I habs unfortunately still managed to me thus to scrap my one x.
The individual parts of the holder are in fact only inserted into one another.
This means that if the part is fitted to the handlebars, and you hinstößt from below, then pushes you apart the parts and the smartphone does a glider. Happened to me in the forest ever since was nothing.
But when the next time it fell on a sharp stone, the display was over.
Here I had still made the fix with superglue ... too late!
Although the rubber bands give more security, but are unfortunately so centered that they always cover the most important part when navigating ... Had the above and / or below it would make more sense.