His solution to balancing the bicycle was a reaction wheel ... be reduced by replacing the 7.4 kg steel wheel with a Tungsten, Osmium, or Lead disk, possibly becoming so small it could fit ...

Since a conventional bicycle wheel with tensioned spokes would collapse ... timing is done with chains running on sprockets welded to the disc brakes. In the second video, he tries to also split ...

And, the rapid evolution of road bike wheels in recent years means that choosing the right wheels has gotten even more ...