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EN ES FR IT
3 Where this climb is: RhôneAuvergne-Rhône-Alpes, France

Col de Boubon

Western ascent from Saint-Mamert
GPX Profile
Length
5.0 km
Height gain
246 m
Average
4.9%
Steepest km
5.9%
Summit altitude
645 m
Difficulty
35

Elevation profile

399 m → 645 m Touch or hover to inspect
Elevation profile: Col de Boubon from Saint-Mamert
0–4% 4–6% 6–8% 8–10% 10–14% 14%+
Steepest km: km 5 at 5.9%

Climb analysis

Where the climbing is

0–4%
0.8 km
4–6%
3.8 km
6–8%
0.5 km
8–10%
0.0 km
10–14%
0.0 km
14%+
0.0 km

Hardest sustained

1 km · km 4.0–5.0
5.9%
2 km · km 0.0–2.0
5.0%

Time to the top

0h 18 at 3 W/kg · 70 kg rider + 8 kg bike, no wind
How this is calculated

Kilometre by kilometre

Export CSV
Km Altitude Gradient 0–15%
1 451 m 5.2%
2 499 m 4.8%
3 548 m 4.9%
4 588 m 4.0%
5 645 m 5.9%

Route map

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Directions
Satellite
Road surface not mapped yet Report a road type
No tunnels mapped Map a tunnel

About Col de Boubon

How long and how steep?
From Saint-Mamert, Col de Boubon is 5.0 km long and climbs 246 m at an average of 4.9%, to a summit at 645 m. Its last kilometre is the steepest, at 5.9%.
How long does it take?
At 3 W/kg it takes about 18 min to reach the top, at 4 W/kg about 14 min (70 kg rider, 8 kg bike, no wind).
What category is it?
It's a category 3 climb, with a difficulty score of 35.
Where is it?
It's in Rhône, Auvergne-Rhône-Alpes, France.

How hard is 35?

Difficulty score is length × gradient, weighted for the steepest kilometre.

Mont Pinçon, Aunay-sur-Odon 35
Seña, Limpias 35
Col de Boubon, Saint-Mamert 35
Alt del Castell de Montjuïc, França Xica 35
La Escrita por Villaverde, La Matanza 35

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Added by altigraphs · 1 contributor

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