I think he was talking about this, but with an extra wheel complicating it further:
qph.cf2.quoracdn.net/main-qimg-9890d0a828a4ad65f74c45932936b312-lq
Imagine a non-articulated lorry with an extra pair of non-steering wheels halfway along its length. Every time it went anything other than straight, the middle set would be dragged sideways across the road.
Obviously on this bike with two half wheels, only one rear or the other would be in contact with the road at any given time, but it would still flip back and forth between two different radius turning circles with every half revolution of the wheels. So even keeping your balance while steering would probably be nightmarish.
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Turtle Power & Knuckles, Fri 1 Jul 2022, 22:53,
Reply)
Bicycles don't have transversely mounted pairs of wheels, so compared to a lorry, any difference in the tracking radius on the extra wheel will be very small. The fact that the bike can be ridden at all means that it will go round corners (you have to be able to lean a bike to balance it) and you can actually see the bike cornering successfully in the video.
I think people are taking this a bit seriously. It's just a bit of fun, not a practical re-engineering of the bicycle!
(, Mon 4 Jul 2022, 19:23, Reply)