Originally Posted by
terrymorse
Because a TT is a full gas maximum effort from start to finish, and the rider doesn't have to do it at the end of a long stage.
It's no surprise that the fastest times up AdH were set during TTs.
I agree that they should. But as of 2017, TTs have only produced the 2nd, 9th, 12th, and 13th fastest times up the Alpe d'Huez, and no other times in the top 35 (ish).