Cargo Bikes

On most of the trike cargo bikes (babboe /cristiana) that twisting goes from "sort of noticeable, but not an issue to an average user", to "holy fuck when you turn left, these thing bends so much the back end turns the other way" and you get a speed wobble at 8mph on a gentle left hander.

I rode a Christiania for the first time a few weeks ago and I was really surprised how wibbly wobbly it felt. I want to say it's probably not a problem because they're mostly ridden (stereotypically) slowly by mums with a couple of small kids onboard, but there's a mum round here who absolutely smashes her one up the road! Always impressed by the way she hauls that thing.