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Col de Belle Roche from Saint-Martin-du-Frêne

2
4.0
1 review/story | Elevation profile | 4 photos
Col de Belle Roche from Saint-Martin-du-Frêne
Col de Belle Roche from Saint-Martin-du-Frêne
Col de Belle Roche from Saint-Martin-du-Frêne
Col de Belle Roche from Saint-Martin-du-Frêne
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Elevation profile Col de Belle Roche from Saint-Martin-du-Frêne

Statistics

Difficulty points 306
Length 10.5 mi
Average gradient 3.4%
Steepest segment 11.8%
Total ascent 1890 ft

Short recap

4 hairpin turns
#63 toughest climb of Ain
#39 most elevation gain of Ain
#19 longest climb of Jura
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Col de Belle Roche from Saint-Martin-du-Frêne is a climb in the region Ain. It is 10.5 mi long and bridges 1890 ft of vertical ascent with an average gradient of 3.4%, resulting in a difficulty score of 306. The top of the ascent is located at 3471 ft above sea level. Climbfinder users shared 1 review/story of this climb and uploaded 4 photos.

Road names: D 31 & D 39

4.0 by Jeroen
This is an automatic translation, the original language is: Dutch.
Beautiful climb through a forest with plenty of shade. The road is officially closed to traffic as the middle section is littered with rocks. Still, it is perfectly doable on a bike I found. You get almost 10 kilometres of car-free climbing in return. Along the way, you have beautiful vistas of the Lac de Nantua. The last part of the climb is easy, the beginning quite tough.... read more

Photos (4)

Col de Belle Roche from Saint-Martin-du-Frêne
Col de Belle Roche from Saint-Martin-du-Frêne
Col de Belle Roche from Saint-Martin-du-Frêne
Col de Belle Roche from Saint-Martin-du-Frêne
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Reviews (1)

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Jeroen
Jeroen premium
10 Mo 4.0
This is an automatic translation, the original language is: Dutch. Show original

Beautiful climb through a forest with plenty of shade. The road is officially closed to traffic as the middle section is littered with rocks. Still, it is perfectly doable on a bike I found. You get almost 10 kilometres of car-free climbing in return. Along the way, you have beautiful vistas of the Lac de Nantua. The last part of the climb is easy, the beginning quite tough.

Prachtige klim door een bos met veel schaduw. De weg is officieel afgesloten voor verkeer omdat in het middenstuk de weg bezaaid ligt met rotsblokken. Toch is het op de fiets wel prima te doen vond ik. Je krijgt er bijna 10 kilometer autovrij klimmen voor terug. Onderweg heb je mooie doorkijkjes op het Lac de Nantua. Het laatste stuk van de klim is makkelijk, het begin best nog pittig.

Col de Belle Roche from Saint-Martin-du-Frêne
Col de Belle Roche from Saint-Martin-du-Frêne
Col de Belle Roche from Saint-Martin-du-Frêne
Col de Belle Roche from Saint-Martin-du-Frêne
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Climbing times

5 mph 02:06:51
7 mph 01:29:48
9 mph 01:09:59
12 mph 00:52:34

Road surface condition

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Traffic

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Frequently Asked Questions

Col de Belle Roche can be cycled from 4 sides. Col de Belle Roche from Saint-Martin-du-Frêne is the most popular side, but the summit can also be reached via Col de Belle Roche from Saint-Martin-du-Frêne via Chevillard, Col de Belle Roche from Nantua & Col de Belle Roche from Ruffieu.

You don't need special gearing for Col de Belle Roche from Saint-Martin-du-Frêne. The slope isn't long or steep enough to require much shifting down. You can conquer this climb on power alone. However, a compact gearing system with a smallest front chainring of 34 and largest rear sprocket of 28 or 30 is always nice if you enjoy cycling uphill. This helps maintain a smooth cadence.

Col de Belle Roche from Saint-Martin-du-Frêne is a serious climb and falls into the 2nd category. With a good basic fitness level, even without much cycling experience, you can complete this climb just fine. However, a bike with climbing gears is a must. Without experience or training, it will be really tough – but that’s part of the challenge!

Col de Belle Roche from Saint-Martin-du-Frêne is 10.5 mi long.

The average gradient of Col de Belle Roche from Saint-Martin-du-Frêne is 3.4%.

Col de Belle Roche from Saint-Martin-du-Frêne has a steepest segment with an average gradient of 11.8%.

The summit of Col de Belle Roche from Saint-Martin-du-Frêne is at 3471 ft.

At a slow pace of 5 mph, it takes about 02:06:51 to climb Col de Belle Roche from Saint-Martin-du-Frêne. At 7 mph the time is 01:29:48, and at 9 mph 01:09:59. For the fastest cyclists, 00:52:34 is an achievable time.

Col de Belle Roche from Saint-Martin-du-Frêne is located in the region Ain in France.

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