So how does it work?

[a_steel]

The plate is registered to your name and address so all traffic violation after you sold the motorbike will come back to YOU?
So the correct thing to do is to de-register the plate and allow the new owner to plate the bike in his name and in a new province if needed.

Remember you are in China now the Logic free zone.

Prince, since when traffic cameras start to catch rules violations done by motorcycles? I am just not well informed about this. two years ago in Shanghai red light crossing, turn from wrong line etc by motorcycle was common action.