Its in French and behind a paywall. When did CO sniffing start being used - 2020?De nouvelles révélations sur le monoxyde de carbone empoisonnent l’air du peloton cycliste - Le Temps
Les bénéfices de cette méthode, contestée mais légale, seraient bien plus importants que prévu sur la capacité respiratoire, révèle une étude citée par le magazine «Tour». A Paris, une réunion de crise a précédé la présentation du parcours du Tour de France 2025www.letemps.ch
According to some articles, carbon monoxide can improve 5% vo2 max, wish can mean more 30 W.
The injuries he had, didn't let him explore that as much as pogacar did.
Yet Visma themselves were still saying Vingegaard wouldn't start the Tour if they didn't think he could defeat Pogacar. Even during the PdB climb they were confident they had Pogacar's measure. Below quote is from the team car radio....
....but of course, still a hard fight to drop Pogacar, we need a big pull from Mateo for the first 20 minutes and then Jonas you just have to hold your threshold and we believe he will get into problems ....
So much for that plan. It was still an incredible performance from Vingegaard knowing what he had recovered from.
So maybe Vingegaard explored other "techniques" Pogi didn't? After all, even Vingegaard demolished Pantani's 1998 EPO record by over 2 minutes.
Seemed clear that Visma simply underestimated Pog. Certainly the theory we have been hearing since 2022 that Pog wasn't so good on hot, long and tough stages was debunked on that climb.