Monza 12H Cycling Marathon is a road bike cycling event category cyclosportive, race in Italy, region Lombardy and was organized for the first time in 2017. The edition Monza 12H Cycling Marathon 2023 took place on Saturday 21 October 2023 with departure in Monza, provincia Monza e Brianza, Lombardy.

Organizer: Monza is speed, passion and tradition. At one of the world's most iconic racetracks the challenge of the Ganten Monza 12H Cycling Marathon, now in its sixth year, is on. In mid-September the Formula 1 cars give way to the heroes of cycling with an evocative and unique endurance test of the FollowYourPassion circuit.

At the Ganten Monza 12H Cycling Marathon you can participate individually or in teams of 2, 4 or 8 athletes (teams of 5, 6 or 7 are also allowed).

The Ganten Monza 12H Cycling Marathon is not the end, but only the beginning of a long weekend dedicated to sport.

The 12H Cycling Marathon will be the forerunner to the Ganten Monza21 Half Marathon, scheduled for Sunday, with the start scheduled at the end of the endurance race.