Col de la Chamboite from Marat
Col de la Chamboite from Marat: 15.2 km at 6.5% average and 987 m of climbing, up to 1,487 m.
- Distance
- 15.2 km
- Elevation gain
- 987 m
- Average gradient
- 6.5 %
- Start altitude
- 500 m
- Road
- Minor departmental road
- Surface
- Paved throughout
- Steepest 500 m
- 11.1 %
- Hardest 2 km
- 8.7 %
- Hardest kilometre
- km 6 · 9.0%
- Above 8%
- 3.8 km (25% of the climb)
- Difficulty index
- 6.8 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 | 1h42 | 8.9 km/h |
| 3.0 W/kg — 210 W | 1h10 | 13.0 km/h |
| 4.0 W/kg — 280 W | 54 min | 16.8 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 | 6.2 % | 562 m |
| 2 | 5.0 % | 612 m |
| 3 | 6.8 % | 680 m |
| 4 | 7.6 % | 756 m |
| 5 | 7.2 % | 828 m |
| 6 | 9.0 % | 918 m |
| 7 | 8.3 % | 1,001 m |
| 8 | 6.9 % | 1,070 m |
| 9 | 6.7 % | 1,138 m |
| 10 | 5.7 % | 1,195 m |
| 11 | 6.0 % | 1,255 m |
| 12 | 7.0 % | 1,325 m |
| 13 | 6.6 % | 1,391 m |
| 14 | 3.1 % | 1,422 m |
| 15 | 5.3 % | 1,475 m |
| 16 (partial) | 4.1 % | 1,484 m |
Download the GPX track All climbs of this col
The other climbs of this col
- From Olmet 21.3 km · 5.0 %
Frequently asked questions
How long is the climb to Col de la Chamboite?
The hardest climb of Col de la Chamboite, from Marat, is 15.2 km long for 987 m of ascent, i.e. 6.5% average.
What is the steepest part of Col de la Chamboite?
The steepest 500 m sits at 11.1%, and the hardest kilometre is the 6th, at 9.0%.
How long does it take to climb Col de la Chamboite from Marat?
Col de la Chamboite from Marat takes about 1h10 at 3.0 W/kg, i.e. 13.0 km/h on average. The page gives three levels and their assumptions.
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