Why did bicycles only emerge in the 19th century?

by gorbyyy

Most of the materials expect for rubber seem to already been available, while in the world without motor vehicles it seems they would be incredibly useful. Why did no such kind of a devise come into wide use?

Searocksandtrees

Hi, a similar question was raised not long ago. You may be interested in this answer from /u/Holokyn-kolokyn