Red Rick said:
I actually think that it takes Froome more energy that he used to to reach a competitive form. He did the slow as molasses build up last year, and wasn't all that impressive in the Tour. It's not like he's doing the super peak thing.
I definitely think he's on the decline, but it isn't very steep yet.
At the moment I doubt he's super motivated ! Some people seem to think because he did the double last year he's not declining but the fact is that he struggled in the Dauphine last year and the Tour at least in the mountains and the final margin in the Tour was blown out on the final stage against a non TT rider and someone who basically followed wheels for three weeks and had not performed in a GT for a long time. Also his main opposition in the Vuelta was Contador who was long past his best even though he rode with a lot of panache in the Vuelta. And Froome's team loaded with talent performed very well in the Tour and even better in the Vuelta.
Some think that he does not attack in the mountains now because he doesn't have to. I think it's more because he can't, not if he wants to stay strong in the third week. He was in trouble a few times in the Tour and never looked like putting a serious gap into Bardet. He is riding to his strengths by depending more on his team and why wouldn't he make use of such talent ? Even in the 2016 Tour, Porte looked as good as Froome in the mountains for the most part as did Mollema except for one disastrous stage. I doubt that Froome would have won either GT last season if he wasn't riding for Sky. And the age of declining usually for a GT rider is approaching the mid thirties so Froome fits that pattern as did Contador, even earlier for him. Only Evans lasted a bit longer but then declined quite quickly after his win in 2011. Sastre was the same after his win in 2008. And Chris Horner was an anomaly !