Col du Chaussy - Lacets de Montvernier Bike Climb - PJAMM Cycling

7.9
FIETS
8.3 mi
DISTANCE
3,277 ft
GAINED
7.5 %
AVG. GRADE

FULL CLIMB STATS

Page Contributor(s): Erwan Treguier, Brittany, France

INTRO

While this climb is fairly pedestrian at 8.3 miles, 3,275’ of gain and 7.5% average grade the statistics would not warrant attention. However, this is simply an amazing climbing experience with 17 hairpins (lacets in french). .4 miles up the climb we begin an unparalleled set of compressed hairpins known throughout the world as “lacets de Montvernier” (or in english Shoelaces of Montvernier) that cover 1.2 miles/1.9 km at 8.7% average grade gaining 540’. This is a climb that simply must be done if one is anywhere in or near the Savoie Department of southeastern France.

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CLIMB SUMMARY

photo collage; aerial view of hairpins snaking up the mountainside; view of guardrail along roadway built on sheer cliff edge

Cycling Col du Chaussy via Lacets de Montvernier

Ride 13.4 kilometers gaining 999 meters at 7.5% average grade.

aerial drone views show the "lacets" of the climb - switchbacks snaking their way up sharp mountainside

While the climb itself is a challenge and worth including on your route in the extraordinary Saint Jean de Maurienne Climb Zone, it is the World Class hairpins which make this climb exceptional. This is simply an amazing climbing experience due to its amazing formation of hairpins (lacets in French), 17 in a brief cluster at the start.  0.4 miles up the climb we begin a unique set of compressed hairpins known throughout the world as “Lacets de Montvernier” (or in English, “Shoelaces of Montvernier”) that cover 1.2 miles/1.9 km at 8.7% average grade gaining 540’.  

road signs at climb's start: col du Chaussey par Les Lacets

The climb begins just northeast of E70 and D1006 near Pontamafrey, six kilometers north of Saint-Jean-de-Maurienne. 

This is a climb that simply must be done if you’re anywhere in or near the Savoie Department of southeastern France and the French Alps climbing hub of Saint-Jean-de-Maurienne.

photo collage shows views along the climb, including Maurienne Valley; sharp sone walls, cross on hillside

Views on the first half of the hairpins.

   photo collage shows sharp drop off side of roadway

Views on the second half of the hairpins.

yellow and white KM markers along the roadway

Kilometer markers before Montvernier.

road signs for Montvernier, end of Lacets de Montvernier climb

Turn left onto D77 in Montvernier (2022 TdF turns right here).

9.9 kilometers gaining 1,507 meters at 7.3% average grade from this point to Col du Chaussy.

yellow and white KM markers along the roadway

Kilometer markers after Montvernier.

yellow and white KM markers along the roadway

The climb has appeared twice in the Tour de France - once (2015) in the Tour de France Stage 19 won by The Shark, Vincenzo Nibali of Italy; and again in 2018, Stage 12 which was won by Geraint Thomas (GBR) who went on to win the Tour that year.

photo collage at climb's finish; PJAMM Cyclist stands with bike in front of road sign for Col du Chaussey

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