Here is the official revised route map and profile for next months Marmotte cycling event. Following the forced closure to the Tunnel du Chambon for emergency repairs, authorities have had to change the course of the 2015 Marmotte. What is interesting about this years route, is that similar to the 2015 Tour de France and the 2015 Etape du Tour they will now also incorporate the short but impressive set of 18 back to back hairpin bend (switchbacks) of the Lacets de Montvernier. Les Lancets (French for loop or hairpin), dates back to the 1930’s and is just 4km long, with an averaging gradient of around 8%. The majority of switchbacks are concentrated to within a 2.5km stretch, resulting in a corner every 150m. Although being climbed for both the Tour de France, the Etapt du Tour and now La Marmotte, descending this road quickly is seen as a hugely technical challenge and requires great breaking and cornering skills.