The 2005 ProTour was the first year of the newly introduced UCI ProTour system , in which the ProTour teams are guaranteed .
The 2005 ProTour obliged to , participate in the series of ProTour races .
The 2005 ProTour was the first year of the newly introduced UCI ProTour system , in which the ProTour teams are guaranteed , and obliged to , participate in the series of ProTour races .