So the British cyclists were disqualified for an illegal changeover yet the Chinese were just relegated for the same offence and get to keep a silver medal.
How does that work?
I think what happened is China basically had their time removed in the final, whilst the same thing happened to GB in the semi-final. Disqualified is the wrong word really, as there were only two in the final it means China got silver despite effectively not setting a time.
EDIT: Argh, beaten to the line by mjo by mere seconds!