You should have previous mountain biking experience to participate in these Tour du Mont Blanc MTB trips. Experience of riding through mid-level mountains is necessary, but you needn’t necessarily have experience of riding in alpine terrain. You will be riding for up to 50 km (30 miles) a day with total elevation gains of up to 1,600 m/5,250 ft (ascents will be reduced to a minimum during the Enduro version of the tour), while carrying a backpack weighing between 6 and 10 kg (13-22 lbs).
Some of the skills needed for the tour include riding with exposure, controlling your bike on moderate steep singletracks, and descents and climbs with some loose rocks and roots, handling small unexpected steps, rock gardens, and occasional little jumps. You should be able to determine when to walk, due to the terrain being too difficult or dangerous. Your guide will monitor your technique, take care of the logistics and help you overcome any obstacles.