The bottom black shell is Cinelli and stamped with "
| 5 6 S 4 4 1" and "
A 7". The fork steerer is stamped with "
A 7 | 5 6 S 4 4 1". I presume this signifies a 56 cm frame, number 441 in some sequence. What "
A 7" and "
|" (vertical line, not numeral "1") mean is beyond me.
The seatstay caps are plain - they don't say "HINAULT" like the La Vie Claire team bikes' did (or one of them did, anyway - see next post). The seatstay bridge says "SILVA DEP".
Dimensionally, the seat tube is 56 cm CTC, the top tube is 55 cm CTC, and the rear dropout spacing is 130 mm. The seat tube ID is 27.2 mm at the post insertion end and OD where the derailleur clamp goes is 29 mm. With the bare fork crown contacting the head tube, there is 39 mm of fork steerer protruding above the head tube, and almost all of that is threaded.
As mentioned in the other thread, the frame weighs 1833 g and the fork weighs 673 g. This seems kind of
porky for this size 753 frame. From the research I did when I was looking for a Raleigh SBDU Team Pro, I recall those 1970s-era 753 frames (no fork) in 56-58 cm usually weighed around 1650 g if Metric 753, maybe around 1800 g if Imperial 753. Yup,
see here. I don't know if 753 frames built in the 1980s were heavier than the 1970s SBDU frames.
