I think that a frequent question about campagnolo equipment is, "when did campy change from early 1970's designs to late 1970's / CPSC designs?" and the year is not pinpointed by the catalogues because a lot changed between catalogue #17 supplement (1975) and the "Olympic" catalogue (1984), if I'm reading Bob's catalogue chronology correctly.
Also, I think that newcomers (such as myself) do not realize that a production bike with campy components that is sold in year #K usually has "PATENT (K-1)" componentry. I don't know if the same is true for custom bikes, but it seems to be the golden rule for schwinns paramounts & raleighs.
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Nuovo Record mech : no lip to having a lip ( > 1973) Nuovo Record mech : having a lip to having holes
Cranksets : narrow Q-factor to wide q factor for the front mech lip (1978)
Chainrings : when was the 41T front chainring produced ? Chainrings : when was the PATENT -> BREV swtichover ? Chainrings : when did crank-arm protecting pins appear ?
Chainring bolts : In what year was the PATENT -> BREV switchover ? Chainset dust caps : PATENT -> BREV switchover ?
NR Bottom Brackets : move from 112 mm spindle to 114.5 for CPSC front mech lip (1978) NR Bottom Brackets : move from thick to thin cup types ? NR Bottom Brackets : move from flat to milled ?adjustable? cup face?
NR Pedals : lost the outside eyelets for toe clips (1975 or 1976) NR Pedals : when / for whom were the <C> - barreled pedals made? SR Pedals : titanium spindle dropped from product line
NR/SR Brake Calipers : flat QR to domed QR (> 1973) NR/SR Brake Levers : key-shaped cable threading cutout replaced by U cutout (1973/1974) NR/SR Brake Hoods : world-logo replaced by shield-logo hoods (egregious mistake, imho)
SR Seatpost : 2-bolt to 1-bolt
SR bottom bracket : titanium spindle dropped from product line
NR headset lockring : "patent campagnolo - patent campagnolo .." dropping the dash
NR downtube shifters : cable guides dropped from clamp (> 1973) NR downtube shifters : metal washers replaced by black plastic, "Brev Camp" -> "<C>
Toe Clips : ? any changes ?
Freewheel : ? any changes ?
Seat Bolt : large barrel vs. small barrel ?
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Thanx to greg parker at bicycle classics for the info about the crankset-based CPSC changes above!
It would be good to compile and summarize this information, maybe on the CR site, to help fill a gap between 1975 and 1984.
- Don Gillies
San Diego, CA