Originally Posted by
neil0502
At the risk of asking a naive question, though: it would seem that one of the pieces (seatpost, seat tube) or both are out of round.
If the TUBE was a pretty clean 27.2, then I'm not sure I'd want to hone it out (oversize it) unless I intentionally moved up to the next stock diameter of post. Otherwise, replacing the post WITH a new 27.2 might involve a too-loose fit situation.
That's why -- if I couldn't verify which one WAS actually off -- I'd probably work the post.
Thoughts?
Buy a vernier caliper, costs less than $10 and you can measure the seat post and seat tube for out of round. Very handy tool, I use it all the time to measure chain wear.
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Il faut de l'audace, encore de l'audace, toujours de l'audace
1980 3Rensho-- 1975 Raleigh Sprite 3spd
1990s Raleigh M20 MTB--2007 Windsor Hour (track)
1988 Ducati 750 F1