So, they're still 'testing' them, but in all races...
"Initial trials were carried out in August and September 2015, with UCI WorldTour teams being given the opportunity to use bikes with disc brakes at two events of their choice.
After extensive discussions with its stakeholders, the UCI has decided to allow the use of disc brakes by riders across all divisions of UCI professional road teams:
UCI WorldTeams
UCI Professional Continental Teams
UCI Continental Teams
UCI Women’s Teams.
The use of disc brakes will be carefully monitored throughout the year with a view to definitively allowing them to be used in professional road cycling from 2017.
Following the decision to further test disc brakes, the UCI has modified articles 1.3.017 and 1.3.020 of its Regulations relating to frames and forks. These changes will operate from the 1st of January 2016.
The UCI has also approved several modifications to its Regulations with regards to saddles and wheel safety characteristics (articles 1.3.014 and 1.3.018). The former will come into force on the 1st December 2015 and the latter on the 1st January 2016."
So, they're still 'testing' them, but in all races...
"Initial trials were carried out in August and September 2015, with UCI WorldTour teams being given the opportunity to use bikes with disc brakes at two events of their choice.
After extensive discussions with its stakeholders, the UCI has decided to allow the use of disc brakes by riders across all divisions of UCI professional road teams:
The use of disc brakes will be carefully monitored throughout the year with a view to definitively allowing them to be used in professional road cycling from 2017.
Following the decision to further test disc brakes, the UCI has modified articles 1.3.017 and 1.3.020 of its Regulations relating to frames and forks. These changes will operate from the 1st of January 2016.
The UCI has also approved several modifications to its Regulations with regards to saddles and wheel safety characteristics (articles 1.3.014 and 1.3.018). The former will come into force on the 1st December 2015 and the latter on the 1st January 2016."