Aprilia

Ball clock.

Its chassis is an Aprilia road bike fork, the dial and pendulum are made from Harley-Davidson brake discs and the entire ball winding mechanism is made from motorbike spokes bent and welded together. The motor of the balance is a simple rolling ball that rises every hour in the hamster cage in the middle, falls and pushes the balance three times in the direction of oscillation, giving it enough energy to move it for an hour by its own inertia.