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2 Where this climb is: IsèreAuvergne-Rhône-Alpes, France

Col de Porte

North-eastern ascent from Saint-Pierre-de-Chartreuse
GPX Profile
Length
8.2 km
Height gain
530 m
Average
6.4%
Steepest km
8.6%
Summit altitude
1323 m
Difficulty
106
2 ways up Compare all 2

Elevation profile

794 m → 1323 m Touch or hover to inspect
Elevation profile: Col de Porte from Saint-Pierre-de-Chartreuse
0–4% 4–6% 6–8% 8–10% 10–14% 14%+
Steepest km: km 6 at 8.6%

Climb analysis

Where the climbing is

0–4%
1.0 km
4–6%
2.5 km
6–8%
2.8 km
8–10%
1.8 km
10–14%
0.3 km
14%+
0.0 km

Hardest sustained

1 km · km 4.6–5.6
9.5%
2 km · km 4.4–6.4
8.2%
5 km · km 3.0–8.0
7.4%

Time to the top

0h 37 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%
1 830 m 3.7%
2 893 m 6.2%
3 943 m 5.1%
4 1013 m 6.9%
5 1084 m 7.2%
6 1171 m 8.6%
7 1248 m 7.8%
8 1314 m 6.6%
9 1323 m 3.7%

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 Porte

How long and how steep?
From Saint-Pierre-de-Chartreuse, Col de Porte is 8.2 km long and climbs 530 m at an average of 6.4%, to a summit at 1,323 m. Its steepest kilometre, km 6, averages 8.6%.
How long does it take?
At 3 W/kg it takes about 37 min to reach the top, at 4 W/kg about 29 min (70 kg rider, 8 kg bike, no wind).
What category is it?
It's a category 2 climb, with a difficulty score of 106.
Where is it?
It's in Isère, Auvergne-Rhône-Alpes, France.

How hard is 106?

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

Gracen, Bradashesh 106
Le Ballon d'Alsace, Giromagny 106
Col de Porte, Saint-Pierre-de-Chartreuse 106
Villaux, La Riera 106
Alto da Fontefría, Ponteareas 106

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Added by Thutmose · 1 contributor

Climbs nearby

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Col du Granier From Saint-Pierre-d'Entremont · starts 9.5 km away
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