Happy to have stumbled upon this thread, lots of great Falcon info. Here is a picture of my Majorca, which I believe to be early 70s. The catalogs show the Majorca as being a 5-speed but maybe there was a 10-speed option? That or the rod-operated Simplex front derailleur was added after the fact. Not a high end bike by any means but I love the color
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Also came across this facebook listing for a nice looking San Remo.
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And do you now what the seatpost size is? 26.8mm or 27.2 possibly? The San Remo is a model 80