KATHMANDU: Spanish mountaineer Kilian Jornet has set a record for the fastest ascent of Mount Everest without fixed ropes or supplementary oxygen, climbing the world's highest peak in just 26 hours, his team said Tuesday, reports AFP. Jornet scaled Everest's north face, starting from the base camp on the Tibet side of the mountain, and reached the summit alone early Monday."We believe Kilian established a new fastest known time for the route (from) Everest Base Camp," Laura Font from his press team told AFP. "He climbed Everest without the use of O2 (or) fixed ropes and in one single push in 26 hours."Climbing without using fixed ropes or oxygen is known as alpine-style mountaineering and is seen as a faster and lighter form of the sport.