Not only is cycling prohibited here, but even carrying bicycles is prohibited. You are neither allowed to push nor carry your bike! Possibly even possessing a bicycle is a criminal offense. This isn't clearly indicated at the entrance; there's just a crossed-out biker on a bicycle. After pushing our bikes 2km and about 300 meters in elevation to the Col de Cou, we fell victim to state-sanctioned highway robbery and paid 50 CHF per person (July 30, 2025).