torqueless
Senior Retro Guru
As we know, the massed-start bike frame went through a few detail changes in the second half of the '70s thru the first half of the '80s. I thought it would be useful if we could collectively ascertain a useful 'not before' date for the following features that distinguish the late '70s-early '80s frame from its early '70s counterpart, and maybe establish a timeline for these changes. In brackets are my provisional best guesses for each- if you know better, speak up!
1)Brazed on bottle cage bosses. (1975)
2)Short Campag. dropouts, possibly with portacatena holes, as opposed to the old 'long' Campag. dropouts. (1977)
3)Rear brake bridge and fork crown counterbored to accept Allen key brakes. (197
4)Brazed on rear brake cable tunnels on the top tube as opposed to the old three chromed clips. (1980)
5)Under the bracket gear cable runs as opposed to over the bracket. (1981)
6)Brazed on gear lever bosses. (1981)
7)Brazed on front mech. bracket. (1983)
130mm rear end spacing for seven speed block (1987)
Maybe you can think of some more? Or those with a wider time-frame can take this backwards (and forwards) through the other decades..
I am thinking of the bike frames ridden in the pro peloton(s) here, or at least the frames built for those who aspired to the pro pelotons. I doubt if any of these changes were innovations in the strict sense of the word- i.e. someone could doubtless find examples of each from decades before, but that is not the purpose of this enquiry. In the sense I mean, these were irreversible changes, in the sense that, once they had been introduced, it would have been self-consciously 'retro' for any pro or aspiring pro to commission or be seen riding a frame without these features.
p.s. the smiley with shades is a typo...
1)Brazed on bottle cage bosses. (1975)
2)Short Campag. dropouts, possibly with portacatena holes, as opposed to the old 'long' Campag. dropouts. (1977)
3)Rear brake bridge and fork crown counterbored to accept Allen key brakes. (197
4)Brazed on rear brake cable tunnels on the top tube as opposed to the old three chromed clips. (1980)
5)Under the bracket gear cable runs as opposed to over the bracket. (1981)
6)Brazed on gear lever bosses. (1981)
7)Brazed on front mech. bracket. (1983)
130mm rear end spacing for seven speed block (1987)
Maybe you can think of some more? Or those with a wider time-frame can take this backwards (and forwards) through the other decades..
I am thinking of the bike frames ridden in the pro peloton(s) here, or at least the frames built for those who aspired to the pro pelotons. I doubt if any of these changes were innovations in the strict sense of the word- i.e. someone could doubtless find examples of each from decades before, but that is not the purpose of this enquiry. In the sense I mean, these were irreversible changes, in the sense that, once they had been introduced, it would have been self-consciously 'retro' for any pro or aspiring pro to commission or be seen riding a frame without these features.
p.s. the smiley with shades is a typo...