Extreme race of the Techni'Trail Tiranges follows a demanding course from the sequence of a number of difficulties which takes riders in unusual places. The race start is rather little technique with rolling trails to the first stop at kilometer 20. The suite provides many technical areas and an attractive total ascent of 5000 meters. A few more rolling paths allow riders to revive through the jump Bezan before arriving at the famous climb to the heart of the lava flow Bourrianne then the medieval castle of Chalencon. This course is for experienced riders. Five refreshment points will be offered. Accompanying find their GPS coordinates on the TT website as well as places where you can go see the brave competitors.