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@markyp
anyone had any experience with reducing the seatpost diameter.?
i.e.machining a 27mm post down to 26.4mm?
I'm after a campag twin-bolt 26.4mm post....but I have a 27.2 (or 27.0)..
I s'pose it depends upon the wall thickness; are 26.4's simply a reduced 27.0 when originally manufactured, etc.
Markyp