You can't quite push it too hard yet, though; otherwise, it has this one weird flaw of the balls just completely popping off ...

[XenonJohn] wrote in to let us know about updates and a recent test drive of an Electric Self-Balancing One-wheeled Motorcycle ... The design and build have been updated since we last saw ...

To solve this problem, [Make It Extreme] built a custom single-wheel motorbike trailer barely wider than the motorcycle itself. The frame of the trailer is welded together from a couple of ...