This is fantastic:

The Revolve is a full-size 26-inch spoked wheel that can be folded to a third its diameter and 60 percent less space, and back again in an instant, and its commercial availability will offer new design possibilities for folding bicycles, folding wheelchairs and many other vehicles that need to be transported in compact form.
A real game-change in terms of accessibility, I reckon.

Source: New Atlas