Climbs › Grand Ballon
Vosges · France · HC
Grand Ballon indoors
From Willer-sur-Thur to 1,422 m: 16.1 km and 1,054 m of climbing on your smart trainer, in 3D with real terrain. Indoors in any weather.
Elevation profile and data
under 4 %4–7 %7–10 %over 10 %per 500 m
How long does Grand Ballon take?
Estimated times at steady power, 75 kg rider, 9 kg bike, no wind or drafting – computed with the same physics as the app.
| W/kg | Watts | Time | avg km/h |
|---|---|---|---|
| 2.0 | 150 W | 1:45:07 | 9.1 |
| 2.5 | 188 W | 1:25:22 | 11.2 |
| 3.0 | 225 W | 1:12:17 | 13.3 |
| 3.5 | 263 W | 1:03:01 | 15.2 |
| 4.0 | 300 W | 56:06 | 17.1 |
| 5.0 | 375 W | 46:30 | 20.6 |
Time calculator
About Grand Ballon
The Grand Ballon (1424 m) is the highest mountain in the Vosges. From Willer-sur-Thur the road climbs through forest to the Route des Crêtes, with the radar dome visible from far away.
In rampida you ride the route exactly as it lies on the road: the gradient reaches your trainer metre by metre, the scenery is built from real elevation data and OpenStreetMap. A pacer group can pull you along, and next time you race your own ghost.
Embed this elevation profile on your website
For clubs, blogs and travel sites – free, please keep the link below.
<iframe src="https://rampida.com/embed/grand-ballon.html" width="100%" height="300" style="border:0" loading="lazy" title="Elevation profile Grand Ballon from Willer-sur-Thur"></iframe>
<p><a href="https://rampida.com/en/climbs/grand-ballon.html">Elevation profile Grand Ballon from Willer-sur-Thur – rampida</a></p>How to ride Grand Ballon indoors
- Open the appOpen rampida in Chrome or Edge and create a free account.
- Pair your trainerConnect your smart trainer or power meter under “Devices”.
- Choose Grand BallonDownload the GPX file and open it in the app under “Load GPX / FIT”.
More climbs in France
- Alpe d’Huezfrom Le Bourg-d’Oisans · 14.9 km · 1,125 m · avg 7.4 %
- Mont Ventouxfrom Bédoin · 21.3 km · 1,605 m · avg 7.5 %
- Col du Tourmaletfrom Luz-Saint-Sauveur · 18.5 km · 1,433 m · avg 7.6 %
- Col du Galibierfrom Valloire · 18.1 km · 1,241 m · avg 6.8 %
- Col du Télégraphefrom Saint-Michel-de-Maurienne · 12.6 km · 853 m · avg 6.5 %
- Col de la Madeleinefrom La Chambre · 19.6 km · 1,524 m · avg 7.8 %
- Col de la Croix de Ferfrom Saint-Jean-de-Maurienne · 27.2 km · 1,639 m · avg 5.5 %
- Col de l’Iseranfrom Bonneval-sur-Arc · 13.3 km · 987 m · avg 7.3 %
- Col d’Izoardfrom Briançon · 19.6 km · 1,211 m · avg 5.4 %
FAQ
How long and how steep is Grand Ballon from Willer-sur-Thur?
The climb is 16.1 km long with 1,054 m of climbing, from 372 m to 1,422 m. The average gradient is 6.5 %, the steepest kilometre 13.3 %.
How long does Grand Ballon take?
At 3 W/kg (225 W, 75 kg rider) about 1:12:17, at 4 W/kg about 56:06 – steady power, no wind. Use the calculator on this page for your own numbers.
Can I ride Grand Ballon on a smart trainer?
Yes. Download the GPX file, open it in rampida (“Load GPX / FIT”) and ride it in 3D with real terrain. Your FTMS smart trainer follows the gradient. It runs in Chrome or Edge, no install.
What does it cost?
During the open beta until 31 March 2027 riding is free and unlimited with a free account. Afterwards 50 km per month stay free.