Please answer the following question: Facts: - discipline: road and track - role: rider - caption: twigg at the 1999 women 's challenge - updated: august 6 , 2010 - birth date: 26 march 1963 - fullname: rebecca twigg - name: rebecca twigg - image: twigg9906 699.jpg - birth place: seattle , united states Based on these bullet points, write a short biography describing the life of rebecca twigg .
Answer:
rebecca twigg -lrb- born march 26 , 1963 -rrb- is an american former racing cyclist , who won six world track cycling championships in the individual pursuit .she also won 16 us championships -lrb- the first - the individual time trial - when she was 18 -rrb- and two olympic medals , the silver medal in the 1984 road race in los angeles , and a bronze medal in the pursuit in barcelona in 1992 .twigg won the first three editions of the women 's challenge on the road .twigg was a three-time olympian -lrb- 1984 , 1992 , and 1996 -rrb- .however , her final olympic appearance , in atlanta in 1996 , ended in controversy when she quit the team in a disagreement with the coach chris carmichael and the u.s. cycling federation .the federation had invested in the development of the so-called superbike .twigg , after using the bike earlier in the games , refused to ride it , citing poor individual fit and claiming that pressure from the staff on her to use the superbike and their refusal to grant accreditation to her personal coach , eddie borysewicz , left her defocused .