Can you unlearn to ride a bike? Dustin, from Smarter Every Day, almost broke his brain with a backwards bicycle for the sake of Science. His friends built a bicycle that goes right when the handlebar is turned left and left when the handlebar is turned right. With that one simple change, the bicycle became impossible to ride. In fact, it took him 8 months of practice before being able to ride it, and when that happened, he unknowingly made himself forget how to ride a normal one.