Marking for date of manufacture 1973 – 1979: the year of crank manufacture is the last digit in a diamond. 1980 – 1984: the year of crank manufacture is the last digit in a circle.
On right: triple crankset with 36 tooth third chain ring (This was the only size inner ring available from Campagnolo)
"Pantographing" (engraving)
cranks and chain rings
1974: The three arm Gran Sport crank set.
"Con sfere "
bottom bracket
Nuovo Record
bottom bracket
Super Record Record
bottom bracket (titanium spindle. aluminum cups)
Bottom bracket spindle Identification
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