Bicycle background picture material HD desktop wallpaper

When it comes to bicycles, the Chinese are all too familiar with them.As a former bicycle kingdom, we have unique bicycle memories.With the changing times, bicycles are constantly undergoing changes!In the 1980s, the number of bicycles in Beijing increased at an average rate of more than 500,000 per year.Bicycles have gradually become the most important and popular means of transportation for Chinese people.