I have just found out that you can take bikes, assembled, on the RER (ie the good, big, quick and easy train that goes direct from Gare du Nord to Paris Lyon), just not Mon-Fri 6h30-9h00/ 16h30-18h30.
(This doesn't help much with Gare du Nord- Montparnasse though)
I have just found out that you can take bikes, assembled, on the RER (ie the good, big, quick and easy train that goes direct from Gare du Nord to Paris Lyon), just not Mon-Fri 6h30-9h00/ 16h30-18h30.
(This doesn't help much with Gare du Nord- Montparnasse though)