Originally Posted by
verktyg
About 1972 Peugeot changed the lugs on the PX-10's from the old style Nervex Professional Model 49/162 that they had been using since at least the early 1960's to Nervex DuBois lugs, the same ones used by Masi and other top name brands. They also changed the down tube decals.
In 1974 Peugeot decreased the fork rake and increased the head tube angles on the mid range size PX-10s - 58cm to 62cm?? They went from 73° to 74° head tubes on those size bikes to follow after the trend setting Italian marques.
Notice the shorter fork rake on this 1974 PX-10 with the old style Nervex Professional lugs.
verktyg
My observation is that the steeper angles start showing up in '73, based on a black Nervex Pro-lugged specimen I had with some date markings the derailleurs, etc. I had a plain DuBois-lugged PX-10LE which was catalogued for 1974 with WHITE headlugs lined with gold, also per the catalog. Both of these steeper-angled PX-10s had serial numbers that appeared to be crudely hand-stamped into the BB shell parallel to the spindle. For that matter, I think EVERY steep-angled '73-74 PX-10 has that, and I have long wondered about that. It seems to me that the '70-'72 PX-10s has the same aluminum plate serial numbers used on everything else. Does anyone have info from a good source about this?
Be interesting to know how the serial number is marked on the OP's bike, btw.