Col de la Serre from Bessas
Col de la Serre from Bessas: 1.5 km at 9.0% average and 137 m of climbing, up to 371 m.
- Distance
- 1.5 km
- Elevation gain
- 137 m
- Average gradient
- 9.0 %
- Start altitude
- 238 m
- Road
- Minor departmental road
- Surface
- Paved throughout
- Steepest 500 m
- 11.4 %
- Hardest 2 km
- 9.0 %
- Hardest kilometre
- km 1 · 8.2%
- Above 8%
- 0.9 km (60% of the climb)
- Difficulty index
- 1.2 Easy
FIETS index: Δaltitude² / (10 × distance) + max(0, summit altitude − 1,000) / 1,000, lengths in metres. How this index works (article in French)
How long does it take?
| Level | Estimated time | Average speed |
|---|---|---|
| 2.0 W/kg — 140 W | 14 min | 6.7 km/h |
| 3.0 W/kg — 210 W | 9 min | 9.9 km/h |
| 4.0 W/kg — 280 W | 7 min | 13.0 km/h |
Estimated for a 70 kg rider on a 9 kg bike, in still air, at a steady effort and without stopping. Wind, a stop at the fountain or a wheel to sit on move these figures by several minutes.
The route
Climb profile
- 10% and above
- 8 to 10%
- 6 to 8%
- 4 to 6%
- under 4%
Kilometre by kilometre
| Km | Gradient | Altitude at the top of the km |
|---|---|---|
| 1 | 8.2 % | 320 m |
| 2 (partial) | 10.6 % | 375 m |
Download the GPX track All climbs of this col
The other climbs of this col
- From Beaulieu 3.3 km · 6.2 %
Frequently asked questions
How long is the climb to Col de la Serre?
The hardest climb of Col de la Serre, from Bessas, is 1.5 km long for 137 m of ascent, i.e. 9.0% average.
What is the steepest part of Col de la Serre?
The steepest 500 m sits at 11.4%, and the hardest kilometre is the 1th, at 8.2%.
How long does it take to climb Col de la Serre from Bessas?
Col de la Serre from Bessas takes about 9 min at 3.0 W/kg, i.e. 9.9 km/h on average. The page gives three levels and their assumptions.
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