There are more bikes here than there are people in most countries!
But most of them are the same . Heavy, step thru' shoppers single gear complete with basket.
Then there is the pre war English designed built to last, carries 3 gas cylinders, used for all kinds of bike freight, Swan. One frame size. Too big for 95% of all Chinese, but I've seen kids of 10 on them.
The coming of Giant and Merida and Mavic has shaken up the market.
A little.
Rich kids want a Mountain bike. Look I've got a Giant 21 speed!
All of the frames are built in China. Bike shops make more money out of selling transfers saying Giant,Merida & Mavic than selling lighter higher quality components for the cheapo bikes, ( about 500 RMB work it out for yourself, and I've seen full disc brake models around this price).
Why? "Face"
I'll never fully understand it, but for simplicity's sake translate it here as being cool, but with the risk of being an outcaste if you make a boo boo. Vitally important to Chinese people, they spend most of their lives worrying about what " the other people" will think.
So the reason behind the transfers sales is Face.
Same with the Mountain bike sales. I've carried out an exhaustive, (well, it exhausts me) survey. Bikes and pedestrians are often together waiting for the light to change. I've looked at these bikes.
In 99.whatever % of cases only one chainring/ cog has any sign of use. I've seen kids pedalling at about 20 cadence up the small inclines we have here. They treat their Mountain bikes like single speeds.
I swear these kids don't know how to change gear, or why they should. Face.
😎