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SwitzerlandMobility: Cycling

Route Lötschberg-Jura-Belfort (route no. 64)

"Today I am heading off towards the Col des Rangiers to reach Ajoie and Boncourt. After a warm-up on the calm and flat terrain from Delémont, the route becomes more difficult after leaving the village of Develier with the climb to the Col des Rangiers, the tip of which is already visible. The hill is a little steep to begin with, but after that things calm down with a few hundred metres on the flat, giving your leg muscles a chance to relax... then the climb gradually returns with virtually no let-up (apart from a slight and very short descent in the middle)... But what a beautiful mountain pass! A wide road, little traffic thanks to the motorway tunnel linking the valley of Delémont to Ajoie, the forests to admire and a gradient that is still gentle on our calves... After at least 45 minutes, I reach the summit of the pass. On my right I can see the Restaurant des Rangiers, where I gaze enviously at the people sitting on the terrace, sipping their drinks in the sunshine. Time for me to have some fun too, I tell myself as I take on the descent!"


The full route comprises 5 stages between Kandersteg and Belfort.

Section 3: Biel/Bienne - Delémont
Distance: 37 km
Gradient: 220 m

Section 4: Delémont - Boncourt
Distance: 43 km
Gradient: 520 m

Section 5 : Porrentruy - Belfort (francovelosuisse)
Distance : 40 km
Gradient : 200m 

Physically: medium
Technically: medium


Good to know

  • At the center of the old town of Porrentruy, a locked room is available for the storage of luggage and bicycles. The key is available at the office of Jura Tourism for 2 CHF or 2 €. 
  • ​Before the construction of the Transjurane motorway, the route through the Col des Rangiers was the only link between Delémont and Porrentruy. These days it is a tourist route enjoyed by bikers and cyclists. It is interesting to note that the summit of the pass marks the continental divide of the waters of the Jura. The waters flowing towards Delémont end up in the Birs, the Rhine and finally the North Sea. Meanwhile, the waters flowing towards Ajoie end up in the Mediterranean via the Doubs, the Saône and the Rhône.
  • The last Swiss village along this route, Boncourt, is the lowest in altitude in French-speaking Switzerland.   

Route Lötschberg-Jura-Belfort (route no. 64)

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