I could never find a Huret Jubilee rear for Campagnolo dropouts; the ones I bought (and returned) were always for Huret style dropouts. The fronts were very nice. Indeed, I thought both the Simplex fronts and Huret fronts were better than the Campagnolo Nuovo Record fronts. Perhaps, I liked the slightly wider cages.
Interestingly, I don't recall the Jubilee derailleur was ever on a bike that won the TdF; the LJ was on several. Did Huret sponsor any major teams?
Regards,
John "Riding his Merlin mostly the last few months and, thus, an apostate"
Taglia
Chicago, Illinois