Driving in France is easy and stress free compared to the UK and of course this way you don't have to let those precious bikes out of sight. We're roughly 3 to 5 hours away from Caen, Le Havre and Cherbourg and 6 to 7 from Calais.
Poitiers and Tours airports are approx. 1hr drive and La Rochelle, Nantes and Limoges are under 3 hrs. Car hire is easy to arrange from most airports.
Anyone wishing to take the train, Chatellerault is,just 25 minutes away.
Do as much, or as little, as you like