What I found interesting was that in the infamous Ben Johnson race in the Olympics subsequently 5 of the 7 other sprinters have been done for doping, but we only ever remember Ben Johnson, I think the same thing applied here. They were pretty much all at it from the 1960's until the last few years. The finishing times for the total tour have started coming down in the last few years that's despite all the advanced bike technology, training and support, that tells you something