These are some things that you dont should forget:

Passport
Bikes registration papers
Bikes insurance papers
European health insurance card, get it here: https://www.ehic.org.uk

Most european countries require you to have a reflective west with you ( in case of stranded on the road)


ASFA ( info about driving in France)

http://www.autoroutes.fr/en/homepage.html



Are you camping or staying at hotels?