timmers said:Finally some one is stating their doubts in clear terms.
Well no one is unbeatable! Every human performance has been bettered over time.
I am a glass half full guy as regards performances. Do you race? I know that if I lose weight I ride climbs faster and I know that other riders are faster than me. Are they on dope? No they have better physical and mental attributes.
How do you know what is possible? How do you know a 10% performance increase is not possible through balanced training and better mental skills?
I note you live in the USA but have you seen European pro riders in the flesh recently? They are scary thin and I would suggest small. Phil Liggett calling Jan Ulrich big has distorted peoples view on the size of riders in my view.
This is not to say that I don't think Brailford has managed Sky comments poorly plus I think Rob Hayles 50% suspension was very dodgy.
But watching someone on TV is not evidence of doping!
I think my comments state explicitly that I would expect human performance to increase over time. Gear has gotten lighter and more efficient, training and specialization are better, and some of the roads are much smoother than they were 20 or 30 years ago. So we should see performance increases.
What no one has explained is how we would see "clean" riders who have never approached the performance of riders using oxygen vector doping, all of a sudden equaling the times of full program riders from just a few of years ago. At least not to my satisfaction or frankly even close to it.
I watch about 3 days of the Tour of California every year, and get about 4 feet from a lot of european riders. Some of them are very thin, some not as much, but it's early season. Last Tour de France I watched in person was in '98 so it's been a while since I've seen them in person prepping for the big race. Yes, I used to race myself, but it's been a decade since I started having kids. Is it your contention that weight loss explains the differences? Why don't they lose power when they lose weight as happened...forever before the last few years? Very, very strange. We know there are drugs out there like AICAR. Does the advent of super skinny riders who don't lose power, and in fact gain power in many cases, not (at least) equally suggest a new kind of doping using drugs like this? I have not heard anyone attempt to explain how this phenomenon is occurring naturally, and of course you hear of people in the sport whispering (or speaking out loud) about these new drugs.
If the 10% number is close to accurate (I think it is but others may not) I can only say that no amount of "balanced training and mental skills" is going to make a 10% difference in any endurance sport at world class level. It has never happened without doping. If there is an explanation how this would all of a sudden be happening in cyclists I'd like to hear it. I don't know what "balanced training" is and I know that "mental skills" are not measurable. It sounds a bit comical to me to suggest this is how the top GT riders are doing things never done without doping.
In the case of Froome one must also consider that it is extremely unlikely that he is come kind of barometer for the limit of human performance. He was a mid-pack rider that his own coach put well down on the scale of performance in that well known graph. Now he's a world beater? It beggars belief.