A self revolving car. You'd think this would be a regular car, but bicycles were probably introduced before cars were, meaning the self revolving car is the bicycle, not the car. Just imagine yourself on a bike, and you don't even have to move the pedals. They revolve themselves, but now you're going too fast and it's scary.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
Excuse me. Is there bicycle parking around here?
I go to the baking workshop every day by bicycle.
I'll buy you a new bicycle. I don't need anything in return!