BTT Sa Carabassa is a mountain-bike endurance race in Muro, Mallorca, organized by Club Ciclista Muro and the Ajuntament de Muro. Participants begin in the morning and race either solo or in two-person teams. The outcome is determined by the number of laps completed, not a set distance.
The circuit measures approximately 7.2 km, and the race lasts a minimum of three hours. It is part of the Open de Resistència by Specialized and adheres to the regulations of the Federació de Ciclisme de les Illes Balears, requiring participants to present ID and a federation license. The inaugural event established Muro's local BTT endurance race, centered on completing numerous challenging laps instead of a single lengthy course.