I have often tried to ride one of these on the southbank. I know the principle and according to the bloke, I did better than most. he said the secret is hours of practice as does the guy in the video. Next time I will challenge that bloke on the southbank to ride my bike
Can't find the thread on why riding a bike works from a physics perspective. I'll post this here instead. Pretty interesting.
https://www.youtube.com/watch?v=MFzDaBzBlL0