Old 05-09-21, 05:09 AM
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Bikes: '82 Trek 613, '83 Lotus Eclair, '86 (?) Yokota Ranger, '85 Schwinn Cimarron

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Originally Posted by T-Mar View Post
You can pretty much identify the tubing, assuming it is Columbus, by two factors:
1) seat post diameter.
2) presence or absence five hecial ridges inside the bottom of the fork's steerer tube.

27.2mm post + helical ridges = Columbus SL

27.2mm post + no helical ridges = Columbus tretubi SL

26.8mm post + no helical ridges = Columbus Aelle

Frame seems a bit small to use SP (which uses 27.0mm seat post), rather than SL,
Post is 26.8, so it looks like it is Aelle.
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