Yes, I go to China all the time.
China WAS the land of bicycles. When I first went there about 12 years ago, bicycles were just about the only convenient way travel within city. There were buses and a few taxis. It was absolute bicycle heaven!
In the center of Beijing - a city with 30 million people - it WAS as quiet as a park because there were no automobiles.
Gradually over the past ten years, the main roads were divided with physical barriers to separate the growing automobile traffic from the bicycle traffic.
Today, the automobile traffic and pollution is getting so bad that it is dangerous to bicycle. The bicycle lanes are now being encroached upon by motorcycles and automobiles. Many streets now have no bicycle lanes at all.
I estimate that within five years, bicycling in the big cities of China will only play a minor role in transportation.
This is really sad. I don't think the Chinese realize what they are losing when they lose the bicycle as a major form of transportation.