Originally Posted by
Sactown_Albert
My suspicion is that it is an Allegro Super Luxe or same era (1960s) with a replaced fork. The main body matches the appearance of the Super Luxe but the fork does not.
Those Allegro bikes did not have the serial number “lozenge” or wraparound seatstays that later was commonly used with Allegros. Take a look at swissbicycles.com for some images.
could be (a Super Luxe from '60s) and that's a new model Allegro for me, have only seen the examples with full-wrap-over stays and GF sandcast BB shells.
But the fork sure seems to be not correct,
The one pic of a somewhat similar model from the swissbicycles website is from drive side so no view of where a serial number "lozenge" would be, but the stay cap looks more or less the same, and it has Nervex Pro lugs, no idea what BB shell, never seen one with "peened/dimpled" chainstay sockets like the OP's has!
BTW the OP's shell looks like it has the "spec numbers" typical of a Nervex BB shell, can anyone confirm it?
Here's a borrowed pic from the website
