D
You don't have to carry it. It'll follow you round carrying the shopping."freely on the stairs": it's better than a dalek ....
I love the idea that something weighing 18kg is so light you can just sling it over your shoulder and trot round the supermarket. 18kg is light for an ebike but is still pretty darn heavy... in my experience, just lifting a folding e-bike into the boot is a hernia inducing exercise, you'd certainly not take it on the tube with you...
If I saw someone with this following them around in a supermarket, I'd have an irresistible impulse to keep popping items they picked back onto the shelves each time!It'll follow you round carrying the shopping.
Bizarre! I love the 60's chic and the "The Nobel prize of World Chinese Invention" ha.