Not to my knowledge. However, there was the Japanese rider who held the world championship in his track event for 10 straight years. As I recall, he could have ridden in the pro peloton, but would have taken a huge pay cut (from what he makes racing the betting circuit in Japan) to do so.
Wait a minute...might there be someone of Asian heritage on one of Postal's lesser teams I have a vague memory of such, but it could be entirely off-base