Joined: Oct 2020
Posts: 1,498
Likes: 1,166
From: Phoenix, AZ
Bikes: 1964(?) Frejus Tour de France, 1967(?) Dawes Double Blue, 1979 Trek 710, 1982 Claud Butler Dalesman, 1983 Schwinn Paramount Elite, 1984 Miyata 1000, 2014 Brompton, maybe a couple more
What are the telltale differences between 71 and 72-73 without looking at the dropout numbers? I have some 71s and they look pretty similar (except for the component changes you noted).