From another forum the translation: http://velorooms.com...?topic=1314.390 Not giving much away, but says his performances are credible. Then again SKY would not release the data if not! Here's today's L'Equipe article in rough English. Any mistakes are mine. Be sure to buy the newspaper. "His performances make sense" FRED GRAPPE has analysed the physical potential of Chris Froome from the last two years and found no anomalies. FIRST CONCLUSION: HIS POWER FALLS AWAY NORMALLY The relationship between power and time is similar to what we know and observe among all the riders for whom we've established a Power Profile Record (PPR). It shows for example a significant and normal decrease in power from 60 watts (0.88w/kg) between efforts of 20 and 60 minutes. On average a rider loses 50W in this interval of time. Established over two years, Froome's PPR shows no anomalies in its fundamental structure. In other words, his power data for the last two years makes sense with the profile that he delivers. The performances that he achieved on Ax-3-Domaines and the Ventoux could be expected given what his PPR says. In two years, his profile hasn't changed. It appears that the potential that he shows today is similar to the one he had in 2011. SECOND CONCLUSION: AN UNUSUALLY HIGH AEROBIC POTENTIAL The extremely high maximum aerobic power (for an effort of 5 minutes) confirms that he has a higher than usual aerobic potential, giving him a VO2Max (which to date has never been measured in a lab by his team) close to the known scientific physiological limits. The exceptional power that he can deliver in the course of a maximal effort of 5 minutes gives him a certain reserve in comparison with other riders. That explains the accelerations that he can do towards the top of the climbs. We can estimate that, in relation to his main rivals, he has a margin of 20W of additional power in his favour. This margin is what we see in examples like Ax-3-Domaines and the Ventoux. THIRD CONCLUSION: A VERY STABLE BODY WEIGHT His average weight over the two years is 68kg in the morning with very small variations of less than 900g. That shows that the power that he's been able to develop in the last two years is relatively stable when you express that it in Watts per kilogram (W/kg), a very important measure in climbing performance. FOURTH CONCLUSION: EXCELLENT ABILITY TO RECUPERATE It's clear that, to be able to exploit a power profile at more or less 100% of the maximum available, Chris Froome has to have excellent recuperative abilities between stages since, if the level of fatigue accumulates too much, he would no longer be able to get close to his own recorded limits. THE METHOD EXPLAINED What do we measure? The study of total physical potential of a cyclist is possible starting with the analysis of power that he produces when producing maximal efforts. The power that he produces is what enables him to move forward thanks to the force he applies on each pedal stroke in terms of the the pedalling cadence (the speed with which he turns the legs). The more the power increases, the more effort is required. Unlike a car, with which you can move at full gas on short and long durations, the cyclist has to find an optimal engine turnover for each duration of exercise. Thus, the shorter the duration of the effort, the most capable he is of producing a high level of power. At the same time, the longer the duration (endurance efforts), the more the power level diminishes. What method has Grappe used? Today, the majority of riders have power meters on their bikes, which enables the download of very precise data at the end of each race. Starting with the data handed over by Team Sky (containing efforts treated as the maxmimum and of a duration between 5 and 60 minutes), Fred Grappe has established Froome's Power Profile Record (PPR) for the last two years. Also from yesterday Before accessing data handed over by Team Sky, Fred Grappe had estimated Froome's potential using his own calculation method, which includes numbers linked to the rider, environmental conditions, equipment used and characteristics of the climb. Comparing the figures, he was able to establish the margin of error as 2.5%, a very narrow number. Using this conclusion, he studied the first climb by Froome in yesterday's time trial and he observed that "the average power produced was once again very much in line with his power profile, and therefore completely expected."