Should I ream?

A question re: Everyone's favourite metal-work double entendre (or is it? That might be a more interesting thread)...

Recently bought a 2nd hand bike. The 27.2 seatpost currently in it is cut off to have about 2" inserted, and will go no further in. Nor will the longer 27.2 seatpost I want to put in there.

It's not an old frame, (it's this one http://www.lfgss.com/thread108803.html ), so I suspect it is 27.2 rather than 27. Measurements with my crappy plastic calipers have helped zilch.

Couple of LBSs are conflicted about this question, however. Does anyone have a hunch? Shell out for a 27 and risk it slipping, or R E A M ?

Thankssss.

More importantly is it REEM?

Yes definately reemer it but go nice and steady and use plenty of lube. Oo er!

don't force it. in a bit, out a bit, in a bit, out a bit makes for smooth buttery reaming.

Had exactly this issue with an older Omega frame- the seat-cluster on ours was something odd like 30.6, we got a shim to adapt it to 27.2 (a 27.2 post slides straight in).

We considered having it reamed but that would have left the seat tube walls too thin if we had taken it out to 31.6.

I'd pop in to have a chat with Coldharbour at Talbot Frameworks, or Ryan at Oak before committing to a reaming.

Got off lightly there, I reckon.

@Dammit... V helpful, I was wondering about this too...