Irati Xtrem BTT

Irati Xtrem BTT is a non-competitive mountain bike challenge held on 19 September 2026 in Otsagabia (Ochagavía), in the Navarrese Pyrenees of Spain. The route covers around 77 km through the Irati forest, one of the largest beech-fir woodlands in Europe, with technical singletrack, forest paths and roughly 2,400 m of accumulated climbing. The event is organised by the local IRATI XTREM Elkartea association and traditionally starts and finishes in the village of Otsagabia.