Originally Posted by
T-Mar
It appears that someone used a reamer or similar tool at some time, to enlarge the inner diameter, possibly to accept a certain seat post. I've seen cases of overly aggressive factory reaming, but not to this extent.
If so, it was me a long time ago.
So, 27.0 post?
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Larry:1958 Drysdale, 1961 Gitane Gran Sport, 1974 Zeus track, 1988 Masi Gran Corsa, 1974 Falcon, 1980 Palo Alto. Susan: 1976 Windsor Profesional.