PJAMM will ride and document this climb in June, 2018. We have confirmed with several Strava members who have ridden this climb that it can be done on a road bike:
Joakim Faiss Hello John, it's a unpaved gravel road and I would not recommend to ride it on a road bike. A gravel bike would be OK, but I used a mountain bike that day. Further up it's just a single trail up the mountain
This climb is situated in one of, if not The, greatest climbing areas in the world. There are 6 Top 100 World Climbs within a 30 radius in the Martigny District of southeast Switzerland, just to the southeast of Lake Geneva.
Will, of the great website, (Cycling Challenge) writes of this climb:
“At approximately 1800 metres (marked on the map above) the road ends at L’Erie. There is a little parking lot and a hiking trail-head.
I realized I was still a long way from the lakes, but decided to continue on the hiking trail – see top photo. It is mainly ride-able but with the wet and some snow ….. and some vertiginous narrow ledges looking straight down to the valley far below … I walked much of the route.
But thoroughly enjoyed myself, as did my bike:
Suddenly, my bike sees something off to the left
After a few kilometres, at just over 2100 metres, I turned a corner and looked into a completely snow filled valley and caught site of Lac de Fully Inferieur below. There is a larger dam / lake higher up to the right, Lac de Fully Superieur, but there was too much snow to continue.
Lac de Fully inferieur is frozen
As best I can tell, there is no road up to these lakes, one stops a little below and then there is a small cable-car thing. I did see some huts being resupplied a several times by a helicopter. http://www.cycling-challenge.com/ovronnaz-and-up-to-lac-de-fully/#prettyPhoto