The Sentiero dei Ducati (Trail of the Duchies) is a path that takes place between the regions of Emilia Romagna, Tuscany and Liguria in Italy. The route is divided into 11 stages, 174 km, over 7,000 meters of ascent and 7,300 meters of descent, from just over 150 m. altitude of the Matildic village of Quattro Castella at over 1200 m. of the Lagastrello Pass. Then back down, through the Lunigiana, to the pretty fortified citadel of Sarzana, near Luni, an ancient Roman port near the Tyrrhenian coast.

The Frans Claes MTB Route is the longest MTB route in Flanders.  We only keep FKTs for running the route (not biking).

https://sporza.be/nl/2021/09/06/frans-claes-opent-de-langste-mountainbikeroute-van-vlaanderen-136km-en-bijna-2000hm~1630936118886/