Can you imagine having a bicycle made of casting iron with the technology of the past? Tetanus would be a problem, people wouldn't be able to have bicycles clos

Can you imagine having a bicycle made of casting iron with the technology of the past? Tetanus would be a problem, people wouldn't be able to have bicycles close to the ocean, it would be even dangerous if the person fell on the ground. It certainly is amazing how people take for granted the marvels of current technology.