The most important thing is to simply make time for assembling the box bike. If you do so, actually nothing should go wrong. It will take at least +/- 5 hours to assemble the bike.
You should also be equipped with some kind of craftsmanship and technical skilfulness.  

You may also purchase pre-assembled box bikes from us, and thus avoid having to expend efforts.

We also sell pre-assembled box bikes.

Electrical box bikes will be pre-assembled; the respective purchase price includes assembly costs. Your box bike will be assembled by experienced box bike mechanics.

The tool kit below (see image) will be included for free with each delivered box bike.