Col du Grand Ballon from Wuenheim
Col du Grand Ballon from Wuenheim: 17.5 km at 6.0% average and 1,054 m of climbing, up to 1,343 m.
- Distance
- 17.5 km
- Elevation gain
- 1,054 m
- Elevation loss
- 13 m
- Average gradient
- 6.0 %
- Start altitude
- 299 m
- Road
- Minor road
- Surface
- 0.2 km unpaved
- Steepest 500 m
- 9.8 %
- Hardest 2 km
- 8.2 %
- Hardest kilometre
- km 12 · 8.3%
- Above 8%
- 5.0 km (29% of the climb)
- Difficulty index
- 6.5 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 | 1h50 | 9.5 km/h |
| 3.0 W/kg — 210 W | 1h16 | 13.8 km/h |
| 4.0 W/kg — 280 W | 59 min | 17.6 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 | 7.4 % | 373 m |
| 2 | 2.7 % | 400 m |
| 3 | 2.0 % | 420 m |
| 4 | 5.0 % | 469 m |
| 5 | 5.1 % | 520 m |
| 6 | 5.1 % | 571 m |
| 7 | 4.8 % | 619 m |
| 8 | 6.8 % | 687 m |
| 9 | 5.0 % | 737 m |
| 10 | 5.7 % | 794 m |
| 11 | 3.9 % | 833 m |
| 12 | 8.3 % | 916 m |
| 13 | 7.9 % | 995 m |
| 14 | 7.1 % | 1,066 m |
| 15 | 8.2 % | 1,148 m |
| 16 | 7.8 % | 1,226 m |
| 17 | 8.1 % | 1,307 m |
| 18 (partial) | 6.9 % | 1,340 m |
Download the GPX track All climbs of this col
The other climbs of this col
- From Willer-sur-Thur 14.9 km · 6.3 %
- From Lautenbach 25.0 km · 4.2 %
Frequently asked questions
How long is the climb to Col du Grand Ballon?
The hardest climb of Col du Grand Ballon, from Wuenheim, is 17.5 km long for 1,054 m of ascent, i.e. 6.0% average.
What is the steepest part of Col du Grand Ballon?
The steepest 500 m sits at 9.8%, and the hardest kilometre is the 12th, at 8.3%.
How long does it take to climb Col du Grand Ballon from Wuenheim?
Col du Grand Ballon from Wuenheim takes about 1h16 at 3.0 W/kg, i.e. 13.8 km/h on average. The page gives three levels and their assumptions.
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