Why are cargo bikes so expensive?

[Andy in Germany]

Yes it is, they can provide all the power, if the cyclist wants.
Just like on an internal combustion motor bike.

Then the law in Belgium is different: they can't do that here.

 

[Andy in Germany]

Easy way to tell if it is a quadricycle, it"ll have four wheels.

So if it has three wheels, it's quadricycle with one wheel missing? That would explain why it needs to come to us...