This year, SThis year, Selle Italia will once again be in the starting blocks of the Maratona dles Dolomites-Enel. For the past thirty-three years, the historic Treviso-based company has supported the prestigious long distance cycling race, which takes place in the heart of the Dolomites on the first Sunday in July and crosses some of the most breath-taking passes in the Dolomites. elle Italia will once again be in the starting blocks of the Maratona dles Dolomites-Enel. For the past thirty-three years, the historic Treviso-based company has supported the prestigious long distance cycling race, which takes place in the heart of the Dolomites on the first Sunday in July and crosses some of the most breath-taking passes in the Dolomites.