This was mounted on the bicycle wheel, which is called "chakra" in Sanskrit. It has 10 gears...or levels.
It reminded me of a spiritual aid, that has been worshipped for centuries in Hindu culture:
(Pic from the net.)
Here is the wiki entry about
The Sri Chakra or the Sri Yantra
Which has nine levels.
How apt, I felt, that the cycle, which is a "yantra" or instrument, has two "chakras", with gears that so closely resemble an ancient "chakra" or "yantra"!
Kinetic energy does not, after all, seem to change much over many centuries! And cycling is a religion for many....