I know Super Spin is described as something that can only be achieved with a combination of a rider on a horse with stirrups, and it requires the horse to achieve its natural speed for the rider to be able to do it, but I wonder, is it impossible to do with a man-made vehicle such as a motorcycle as long as you have some reference for the Golden Rectangle?
Nvm. Just reread the chapter that describes it. The rotation itself can only be produced by the horse itself and not by its speed alone.
Though now that I think of it, would the metal horse Avicebron made for Vlad work? It is technically a horse, but it's also a golem.