The kobuki foundation by itself isn't going to drift, so it is smart the tilted inertia brings about the drift. Not surprisingly I'm able to hack my URDF by using a weightless superstructure, but I planned to take care of this in a far more real looking way. I tried https://www.uk-exhibitionstands.co.uk/product-category/hanging-towers-seating/blimp-hanging-hanging/