Spare wheels/tyres for quinny

Do you mean you need to inner tube? or the whole set?
If you need to whole set, then you need to order it from one of the stores but the last time I asked they said there was a 6 week wait.
If you need to innertube, then there is a great bicycle shop right by the main entrance of Gare du Nord who sell them for about 5 euros if I remember correctly. Just take the wheel off and remove the innertube and take it with you. NFR