I've done this before - - on accident - - and I don't recommend it. The frame was sized for a 27.0. I bought a 27.2 and proceeded to have to "turn" it down rotating it on my belt sander and with emery cloth. What I wouldn't have given for access to a nice little South Bend lathe! What a thankless chore.
The trouble with this is I also removed the anodizing (yes, even when it's raw color, it has been anodized); so now a particularly unattractive, dark, discolored almost-silver post. Hunt down a 27.0 and you'll be happier.
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Originally Posted by Mark Twain
"Don't argue with stupid people; they will drag you down to their level and then beat you with experience."