1/ Cols are located in mountainous areas and consequently the weather changes very quickly. To avoid getting stuck in the snow (even in June!) or by a storm, check the weather before your ride. www.meteofrance.com
2/ Check the condition of roads and opening cols (some passes do not open until June).
Construction and opening of cols in Savoie: www.savoie-route.fr
Construction and opening of cols in Haute-Savoie: www.inforoute74.fr
Construction and opening of cols in Isère: www.itinisere.fr
3/ Essential equipment : helmet, repair kit, and warm clothes for downhill (especially for high passes like Galibier or Iseran)
5 / Anticipate the reservation of your bike. Many of our clients book bikes 6/7 months before their stay. Guaranteed to have a bike for your holidays is booking enough in advance to avoid being disappointed by a stockout during a last minute booking.