Col du Berthiand from Serrières-sur-Ain
Col du Berthiand from Serrières-sur-Ain: 6.3 km at 8.0% average and 509 m of climbing, up to 780 m.
- Distance
- 6.3 km
- Elevation gain
- 509 m
- Average gradient
- 8.0 %
- Start altitude
- 277 m
- Road
- Main road
- Surface
- Paved throughout
- Steepest 500 m
- 11.6 %
- Hardest 2 km
- 9.9 %
- Hardest kilometre
- km 1 · 10.9%
- Above 8%
- 3.2 km (50% of the climb)
- Difficulty index
- 4.1 Moderate
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 | 51 min | 7.4 km/h |
| 3.0 W/kg — 210 W | 35 min | 10.9 km/h |
| 4.0 W/kg — 280 W | 27 min | 14.3 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 | 10.9 % | 386 m |
| 2 | 9.0 % | 476 m |
| 3 | 9.7 % | 573 m |
| 4 | 7.3 % | 646 m |
| 5 | 6.1 % | 706 m |
| 6 | 6.9 % | 776 m |
| 7 (partial) | 3.2 % | 787 m |
Download the GPX track All climbs of this col
The other climbs of this col
- From Nurieux-Volognat 3.3 km · 8.7 %
- From Poncin 14.8 km · 3.8 %
- From Matafelon-Granges 14.9 km · 3.8 %
Frequently asked questions
How long is the climb to Col du Berthiand?
The hardest climb of Col du Berthiand, from Serrières-sur-Ain, is 6.3 km long for 509 m of ascent, i.e. 8.0% average.
What is the steepest part of Col du Berthiand?
The steepest 500 m sits at 11.6%, and the hardest kilometre is the 1th, at 10.9%.
How long does it take to climb Col du Berthiand from Serrières-sur-Ain?
Col du Berthiand from Serrières-sur-Ain takes about 35 min at 3.0 W/kg, i.e. 10.9 km/h on average. The page gives three levels and their assumptions.
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