David Millar (Garmin-Transitions) broke the course record in winning the Chrono des Nations on Sunday and revealed afterwards that one of the secrets of his success was riding without a rear brake.
http://www.cyclingnews.com/news/millar-ends-season-in-best-time-trialling-form-of-his-career
If true this is contrary to UCI rules.
Could he be disqualified?
Or did he mean he never used his rear brake?