Interesting question. Non astronomer here, I’d say unlikely because they would attract each others. And merge into one. But how could they even have originated as two separate rings, considering rings originate as spherical debris that floats towards a potential well that is always along the rotational axis? So the answer is no using basic physics.

Seems vastly inferior to walking. As opposed to an actual bike, you dont have the advantage of the wheel (and reduced friction because of rolling)

By Stefanie Waldek published about 4 hours ago Phaethon is just the 11th known asteroid to demonstrate a changing rotational period.

(Clickbait defeated)