The iron pipes are stable, the plastic compounds also; the assembly is no problem; the stand wearing loud internal Note loads up to 20 Kg !. This last statement is not mentioned in the article description! Use: The mounting stand is, as long as the bike is aligned with the center of gravity, very stable; you can easily attach an e-bike, the stand is absolutely correct, tilts to either side. When assembling the wheel of the stand remains stable.