Gentlemen, as much as I hate to contradict the experts, I have a 720, which is a 1982 frame purchased new as a frame in 1983, that does not have cantilever studs (and never did, by the way. I always wanted them, but they were not available at the time!).
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No worries there. Many things I "know" I learned from reading or using reference materials - which would make me "informed" rather than an "expert"
. As one pokes through catalogs attempting to figure out just what that is, bear in mind that that is the "Trek investment cast bottom bracket with integrated cable routing". According to the catalogs, that wouldn't appear on a bike with this geometry until the 1986 model year. For whatever that's worth.
