4.5
(26)
1,835
riders
18
rides
Road cycling routes around Sem are characterized by challenging mountain passes, high-altitude plateaus, and scenic reservoir areas. The terrain primarily features significant elevation gains, with routes often traversing cols and offering views of the surrounding peaks. This region provides a demanding environment for road cyclists, with numerous climbs and descents.
Last updated: July 5, 2026
5.0
(1)
99
riders
36.7km
02:24
1,110m
1,110m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
4.5
(2)
188
riders
196km
10:57
4,300m
4,300m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Sign up for free
112
riders
140km
08:02
3,240m
3,240m
Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.
89
riders
26.9km
01:12
280m
280m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
202
riders
53.5km
02:56
1,120m
1,120m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Start today with a free account
Your next adventure awaits.
Login or Signup
A heavenly place to enjoy the Pyrenees in their full glory. Ideal for a family picnic in spring or summer. Also, as there is a bar - restaurant, it is ideal if you want to have a drink on the terrace.
0
0
I climbed it from its easier side, the one that starts from Foix and stretches for 28 kms, crossing the Col de Marrous. It's a steady climb, with a few tough kilometers, and very pleasant. It's the side used by the Tour de France to descend it. The best thing about the Mur de Peguère are the views from its summit.
0
0
It is a MUST of the Pyrenees, without a doubt, that should be included in any route that crosses the Pyrenees from side to side. Any of its slopes 2 is spectacular and tough. The views from its summit are wonderful, feeling the wild side of the Pyrenees. Of course, once at the summit of this pass... you have to descend to the Étang de Lers and enjoy a quiet rest on the shores of the lake. It is a pass that has been part of the Tour de France route on several occasions, although always far from the finish line. The first professional rider to crest it in the lead was the unforgettable Marco Pantani in 1995.
0
0
I can only speak about my experience descending it from the south side, the one that starts in the village of Biert. It's simply a great pass, with a very tough final section, very similar to its close brother Mur de Peguère. With hardly any traffic, it has the appeal that the road is very narrow and very winding, which helps mentally.
0
0
I liked the climb from the north side (from Massat), very scenic and alpine landscapes towards the end at the étang de Lers
0
0
There are several fountains and public pools with pure thermal water to warm your feet after the descent.
0
0
Nice relax and shower stop in the swimming pool by Parc de'Espagne. Also a hose to clean the bikes in park near the gondola lift entry.
0
0
There are over 15 road cycling routes around Sem, offering a variety of challenging experiences. The region is particularly known for its difficult mountain passes and significant elevation gains, with 10 routes rated as difficult, 4 as moderate, and 2 as easy.
While Sem is primarily known for its challenging terrain, there are a couple of easier road cycling routes available. These routes still offer the scenic beauty of the region but with less demanding climbs, making them suitable for those newer to road cycling or looking for a more relaxed ride.
Road cycling routes around Sem vary significantly in length and duration. For instance, a route like Through the Lers pass to the pond is about 22.8 miles (36.7 km) and takes around 2 hours 24 minutes. Longer, more challenging loops such as Col de la Crouzette (1245 m) – Col de Saraillé loop from Val-de-Sos can extend to 86.9 miles (139.8 km) and require over 8 hours to complete, traversing multiple mountain passes.
The terrain around Sem is characterized by challenging mountain passes, high-altitude plateaus, and scenic reservoir areas. Cyclists should expect significant elevation gains, numerous climbs, and descents, making it a demanding environment best suited for experienced road cyclists.
Yes, many of the road cycling routes around Sem are designed as loops, allowing you to start and finish in the same location. Examples include the difficult Notre-Dame de Sabart Chapel – Col de Port loop from Niaux and the extensive Col de la Crouzette (1245 m) – Col de Saraillé loop from Val-de-Sos.
The routes in Sem offer breathtaking views and pass by notable attractions. You can cycle over the challenging Lers Pass, or past the serene Izourt Pond. The Notre-Dame de Sabart Chapel is another historic landmark you might encounter on your ride.
The road cycling routes in Sem are highly rated by the komoot community, with an average score of 4.5 stars from over 25 reviews. Cyclists often praise the challenging nature of the climbs, the stunning mountain scenery, and the rewarding descents.
Given the mountainous terrain and high-altitude passes, the best time for road cycling in Sem is typically from late spring through early autumn. During these months, the weather is generally more stable, and the passes are clear of snow, offering optimal conditions for challenging rides.
Yes, several routes in Sem feature scenic reservoir areas. For example, the Étang de Soulcem – Soulcem Reservoir loop from Suc-et-Sentenac takes you past the beautiful Soulcem Reservoir, offering stunning views during your ride.
Sem is a paradise for advanced road cyclists seeking significant challenges. Routes like Notre-Dame de Sabart Chapel – Plateau de Beille Climb loop from Vicdessos, with its substantial elevation gain over 100 km, or the multi-pass Col de la Crouzette (1245 m) – Col de Saraillé loop from Val-de-Sos, are designed to test endurance and climbing prowess.
While the region is rugged, some routes may pass through small villages or near refuges where you can find refreshments. For instance, the Bassiès Refuge is one such spot that might be accessible from certain routes, offering a place to rest and refuel.
The region is famous for its mountain passes. The Lers Pass is a well-known climb featured in routes like Through the Lers pass to the pond. Other significant passes include Col de Port, Col de la Crouzette, and Col de Saraillé, which are integral to many of the longer, more challenging loops.


Browse the best Road cycling routes in other regions.