Col du Grand Cucheron from Chamoux-sur-Gelon
Col du Grand Cucheron from Chamoux-sur-Gelon: 17.2 km at 6.6% average and 1,133 m of climbing, up to 1,183 m.
- Distance
- 17.2 km
- Elevation gain
- 1,133 m
- Elevation loss
- 219 m
- Average gradient
- 6.6 %
- Start altitude
- 295 m
- Road
- Minor departmental road
- Surface
- Paved throughout
- Steepest 500 m
- 14.6 %
- Hardest 2 km
- 9.7 %
- Hardest kilometre
- km 16 · 10.9%
- Above 8%
- 6.2 km (36% of the climb)
- Difficulty index
- 5.1 Sustained
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 | 1h57 | 8.8 km/h |
| 3.0 W/kg — 210 W | 1h20 | 12.9 km/h |
| 4.0 W/kg — 280 W | 1h02 | 16.6 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 | 6.4 % | 359 m |
| 2 | 8.7 % | 446 m |
| 3 | 7.6 % | 522 m |
| 4 | 8.2 % | 604 m |
| 5 | 8.1 % | 685 m |
| 6 | 8.6 % | 771 m |
| 7 | 8.1 % | 853 m |
| 8 | 9.9 % | 952 m |
| 9 | 7.1 % | 1,023 m |
| 10 | 7.1 % | 1,094 m |
| 11 | -3.0 % | 1,064 m |
| 12 | -7.0 % | 994 m |
| 13 | -8.4 % | 910 m |
| 14 | 0.4 % | 915 m |
| 15 | 8.1 % | 996 m |
| 16 | 10.9 % | 1,105 m |
| 17 | 7.7 % | 1,182 m |
| 18 (partial) | 13.2 % | 1,209 m |
Download the GPX track All climbs of this col
The other climbs of this col
- From Saint-Alban-d'Hurtières 11.1 km · 7.8 %
- From Villard-Léger 17.4 km · 5.6 %
Frequently asked questions
How long is the climb to Col du Grand Cucheron?
The hardest climb of Col du Grand Cucheron, from Chamoux-sur-Gelon, is 17.2 km long for 1,133 m of ascent, i.e. 6.6% average.
What is the steepest part of Col du Grand Cucheron?
The steepest 500 m sits at 14.6%, and the hardest kilometre is the 16th, at 10.9%.
How long does it take to climb Col du Grand Cucheron from Chamoux-sur-Gelon?
Col du Grand Cucheron from Chamoux-sur-Gelon takes about 1h20 at 3.0 W/kg, i.e. 12.9 km/h on average. The page gives three levels and their assumptions.
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