Dr. Maserati said:
That doesn't really say much, does it?
According to wikipedia - which of course you can never trust - it was coined by the Festina boys claiming that
if they had been doped themselves, then Riis had to have been doped to at least 60% (because he beat Virenque in 96). Always a good defense - deflecting onto someone else.
It was used in Danish media after a a couple of tv programs around 99 and 2000 investigated doping in cycling by one of the journalists going undercover as a soigneur. In these programs they got access to the Conconi files (and later the Ferrari files) and in this connection they noted Riis was rumoured to be called 60% in the peloton. However, they never documented where it came from or if it was actually anything but a rumour. I'm not sure, but I think this was what coined the phrase in Danish media back then - maybe some journalists had heard it before from other sources, but I don't know.
I have also heard - and I know others say the same on here (sorry forget who!) - that there was indeed a 60% in the peloton, but that it wasn't Riis (Chiappucci, Bugno?).
This would also make sense as there were clearly riders doping a lot more than Riis. One often overlooked thing is that he was actually very careful about what and how much he took. Like everything else with him in cycling he was a perfectionist and did not want to risk his health by overdoing it and taking too much. To this day (in his recent book) he says he doesn't actually know how high he went, but that he doubts it's even as high as the reported 56% (again, reported in the tv program above). He also recounts a story of walking into another (unnamed) rider's hotel room to see him flaunting his extremely high hct and thinking that the guy was crazy. Riis didn't start on the juice until 93 and had by then seen it all - craziness in crits and so on - and heard plenty about the suspicious deaths. Enough to make sure he did it as safely as possible.
A story that D'Hondt doesn't mention, but which Riis can tell is that the two of them never really got along that well. Before Riis started doping D'Hondt cameinto his room one day with a syringe he said Riis had to take. Riis wanted to know what was in it, but when D'Hondt would not tell him he refused and, much to the anger of D'Hondt, emptied the syringe into the sink.
Obviously anything that happened between D'Hondt and Riis is really difficult to ascertain what is correct and what is not. They both lied during their careers and so it's difficult to trust 100% of their later testimonies which is all we'll ever have to by. In addition to that they can easily remember things differently...