One can the basket thanks to the "rack mount" very loose and take off, the bag itself is also quite stable so far so good. Somewhat problematic but was attachment to handlebar, because the handlebar fixing was a little too wide for the Kunsstoffaufnahme the basket. After some tinkering, I could still fit, but I broke the whole Plastekram apart after the first potholes were taken, then had to improvise and have secured the initial mobile basket without mounting on the handlebar by hose clamps.
Conclusion: the basket is ansich okay from the brack I can not say that.