It may be a cheap product, but it works

The clamp with plastic protectors can be adjusted in dimension. I don't know the exact diameter, but I have been able to clamp quite a variety of tubes, from horizontal spars to vertical support tubes.

E-bike indicates a certain weight. i had an older e-bike with a hub motor that was particularly heavy. then you have to make sure that the sternum is positioned intelligently, otherwise the wheel will give way.

Generally speaking, the stand is a budget product, but it is well suited for occasional services. for Velonerds who constantly mount parts, it is a somewhat fragile device.

Yes, it works