Bikes need at least two wheels to be drivable, but [The Q] I realized that you don’t necessarily need the wheels to be in one piece. As long as you have at least two rolling points of contact with the ground, you can distribute the load over several partial wheels. He demonstrated this by dividing the rear wheel of his bike first in half and then thirds to create an absolute head spin.
Since a traditional bicycle wheel with screwed spokes will collapse if cut off, [The Q] One-piece aluminum wheels are used instead. The tires were cut to pieces and the inner tubes replaced with sections of thick-walled HDPE tubes that do not collapse under human weight. Tires and “inner tubes” of high-density polyethylene were installed on the wheels.
for mounting additional wheels on the frame, [The Q] A set of extensions are welded to the rear with mounting points for the partial wheels. To keep them synchronized, the timing is done by chains running on sprockets welded to disc brakes. In the second video, he also tried to split the front wheels, but found that the front forks couldn’t handle the torque and would bend dangerously when the contact point was too far forward. Instead, he settled on three wheels on his back.
Much like his non-pivot bike, it’s not designed to be any better than a regular bike, but it’s excellent for getting attention. Although in at least some situations, a four-wheel drive bike he made last year might come in handy.