Team Belgium is a bit worried about the impact of the altitude. They are worried not everyone will be ready in time with adapting to it.
Campenaerts:
There is a big difference between the feeling I had before I left here and the feeling that I have now. The wattages that I ride here are 10% lower than normal. There was a climb in the course of the Mixed Relay that took five minutes. It immediately felt very difficult. While I was riding a pace that I can ride in the Tour for 45 minutes. In addition, it may not feel extremely warm, but as soon as you cross your limit, you cannot cool down due to the great humidity. Your sweat cannot evaporate.