Col du Sapenay from Grésy-sur-Aix
Col du Sapenay from Grésy-sur-Aix: 14.5 km at 4.3% average and 620 m of climbing, up to 897 m.
- Distance
- 14.5 km
- Elevation gain
- 620 m
- Elevation loss
- 29 m
- Average gradient
- 4.3 %
- Start altitude
- 309 m
- Road
- Minor departmental road
- Surface
- Paved throughout
- Steepest 500 m
- 11.5 %
- Hardest 2 km
- 8.9 %
- Hardest kilometre
- km 10 · 9.5%
- Above 8%
- 2.2 km (15% of the climb)
- Difficulty index
- 2.4 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 | 1h10 | 12.4 km/h |
| 3.0 W/kg — 210 W | 50 min | 17.4 km/h |
| 4.0 W/kg — 280 W | 40 min | 21.7 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 | 2.5 % | 335 m |
| 2 | 3.1 % | 365 m |
| 3 | 4.9 % | 414 m |
| 4 | 1.7 % | 431 m |
| 5 | 3.4 % | 465 m |
| 6 | 4.0 % | 505 m |
| 7 | 2.4 % | 529 m |
| 8 | 5.1 % | 581 m |
| 9 | 5.3 % | 633 m |
| 10 | 9.5 % | 728 m |
| 11 | 8.1 % | 810 m |
| 12 | 6.3 % | 872 m |
| 13 | 3.8 % | 910 m |
| 14 | -1.4 % | 897 m |
| 15 (partial) | 0.6 % | 900 m |
Download the GPX track All climbs of this col
The other climbs of this col
- From Chindrieux 8.8 km · 7.5 %
- From Bloye 12.6 km · 4.8 %
Frequently asked questions
How long is the climb to Col du Sapenay?
The hardest climb of Col du Sapenay, from Grésy-sur-Aix, is 14.5 km long for 620 m of ascent, i.e. 4.3% average.
What is the steepest part of Col du Sapenay?
The steepest 500 m sits at 11.5%, and the hardest kilometre is the 10th, at 9.5%.
How long does it take to climb Col du Sapenay from Grésy-sur-Aix?
Col du Sapenay from Grésy-sur-Aix takes about 50 min at 3.0 W/kg, i.e. 17.4 km/h on average. The page gives three levels and their assumptions.
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