The Pro Tour is a 24-race series that began in March.
Organisers of the major races are said to have been concerned about keeping their identity to help their own sponsorship deals.
They announced at the weekend plans to pay each team that makes the start line in the Tour de France, Giro d'Italia and la Vuelta in Spain a euros 100,000 bonus.
UCI president Pat McQuaid described the decision as "obscene", and said what matters is that money at the top is used to develop the sport at the bottom.
A UCI statement read "establishing and modifying the rules that govern the sport of cycling is the exclusive province of the international federation", adding that this "excludes the possibility of any unilateral decision outside this institutional context."
It went on to say that "organisers of the three major tours have given far greater weight to commercial and financial aspects in establishing the participation system to be applied to their races than to sporting criteria and to the financial stability of the movement as a whole".
