there was a kickbike thread in February. My comment:
A fellow did last October's Hilly Hundred (Southern Indiana) on one. He has won some major races in Europe, according to a newspaper story about him. He was slow up the hills but, on the last major downhill of the Hilly, my wife and I were getting up to a pretty good speed on our tandem when he came from out of nowhere and passed us going REALLY FAST!