Join Date: Jun 2010
Location: NW,Oregon Coast
Mentioned: 24 Post(s)
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Quoted: 1515 Post(s)
someone used the pinch bolt to distort the seat tube [blind guess]
if you can find a steel seatpost of the right size, [or a machined shim and a smaller post]
perhaps it can be cold set back..
but without data in thousandths of an inch [fractions of mm]
of difference of the oval axis , its a blind guess
if you choose to ream oversize the seatpost should be bought first, then slowly ream the ID
untill the post just fits. or it will be sloppy fit ..
and you go back a square on the game board.
I made my 27.0 tube road frame take a 27.2mm seat post with an adjustable reamer,
and 45 minutes of fussy labor.
so bore is also smooth.
Last edited by fietsbob; 10-27-10 at 11:54 AM.