The doping scandal that has brought about the life ban for Lance Armstrong and disgraced several past Tour de France winners is "the biggest crisis" in cycling's chequered history, the UCI president has said.
Pat McQuaid said drugs will always play a part in the sport, and it was the job of officials to "weed it out."
But, adapting a famous quote from former US President John F Kennedy, he said that cycling's drugs crisis brought about "danger", but also a fresh "opportunity" to clean the sport up.
A 30ft effigy of the disgraced cyclist wearing a Jim'll Fix It badge will be torched in front of thousands of people on Saturday night.
The UCI confirmed Lance Armstrong's lifetime ban and stripping of his Tour titles, but defended itself in cycling's "worst" doping scandal.
Nike has dropped their sponsorship deal with Lance Armstrong as the disgraced cyclist quits his own charity.