Charlotte has been invaded. There are bicycles everywhere (smile).
There are several companies providing the bicycles. A few of the companies are: lime bike, spin, and ofo.
Apparently the concept is “dockless bike shares” and you leave them wherever you complete your ride.
We have not ridden them however it is impossible to stroll in Uptown and not notice them. There are several per block. And when we venture outside of Uptown we see them in the South End, in Mid-town, Dilworth, and I’m assume many other locations.
Charlotte Daily Photo 
We have similar ones here, though they’re all stored away over the winter.