The "mostly gained time on the descent" argument is stupid.
Yes, he gained time on the descent, that's a fact. He also gained time on the ascent. Dumoulin and co. made a tactical error by waiting for Reichenbach, that can account for some time too. Also, it's different when you gain some time on a descent and you keep it for a while, but that's not what we've seen yesterday.
To be so much faster on every descent - what about the factor of fatigue? When you're tired, you can't pay as much attention as you should. You are more prone to make mistakes, to misjudge a corner, to crash... So when you are tired, you won't descend on full speed.
Froome's speed and constant gains tells me that he was a lot less tired than anyone else, even when he was climbing so much faster for so long, alone. So how is this possible?
I think we've seen a motor. He was just... way too powerful.
Yes, he gained time on the descent, that's a fact. He also gained time on the ascent. Dumoulin and co. made a tactical error by waiting for Reichenbach, that can account for some time too. Also, it's different when you gain some time on a descent and you keep it for a while, but that's not what we've seen yesterday.
To be so much faster on every descent - what about the factor of fatigue? When you're tired, you can't pay as much attention as you should. You are more prone to make mistakes, to misjudge a corner, to crash... So when you are tired, you won't descend on full speed.
Froome's speed and constant gains tells me that he was a lot less tired than anyone else, even when he was climbing so much faster for so long, alone. So how is this possible?
I think we've seen a motor. He was just... way too powerful.