Joined: Nov 2006
Posts: 19,810
Likes: 597
From: NJ, NYC, LI
Bikes: 1940s Fothergill, 1959 Allegro Special, 1963? Claud Butler Olympic Sprint, Lambert 'Clubman', 1974 Fuji "the Ace", 1976 Holdsworth 650b conversion rando bike, 1983 Trek 720 tourer, 1984 Counterpoint Opus II, 1993 Basso Gap, 2010 Downtube 8h, and...
Oh, what the heck! Go ahead and give it a try! Measure 12 links; if they measure 12 1/4", throw it in the recycle bucket. If exactly 12" then it should be okay for a while. But it also depends on the bike you intend this for; but certainly for an old 3 speed with steel chain ring etc it should be okay.