While the TMB doesn’t climb to the summit of Mont Blanc, the route climbs up and over numerous high alpine passes, providing stunning views in all directions! Thanks to a well-developed system of huts, along with towns and hotels along the route, there are numerous options for staying overnight and resupplying as you journey around the loop.

Unlike the hiking version of the TMB, the mountain biking version of this route isn’t nearly as well defined. Instead, riders can choose from numerous route variants. For this variant we tried to optimise for maximum time in the saddle, and minimum time carrying your bike. This means the tour has several longer segments of paved road, particularly on the climbs.

Start this segment of the tour in Les Contamines. Continue on the main road down the valley to La Villette. From here, you'll start the one big climb for the day.

The trail goes right into dense pine forest. Continue up to the lift station at Gare du Col de Voza.

The descent follows the access roads for the ski resort down to Les Chavants. From here, you'll take a short road section to Les Houches, where you'll cross the major highway and start the final stretch to Chamonix along the hiking trail through the valley.

Sources: https://en.wikipedia.org/wiki/TourduMontBlanc