were you surprised because you expected the seattube's inner diameter to be 27.2 ?
to get a good sliding fit between the seatpost & seattube, the ID needs to be a bit larger.. 27.4 is the normal size required for using the ubiquitous 27.2 seatpost
andrei padlowski brooklyn, ny
On May 15, 2008, at 2:07 PM, George Allen wrote:
> I am assembling components for my 1986 Richard Gangl frame. It's
> lugged steel and so I trust is on-topic as a KOF item. I measured the
> ID of the seat tube and was surprised that it is 27.4mm. I've measured
> several times, several ways with several different instruments and
> it's always 27.4. So my question is, what type of tubing would this
> be. I have tried to call Mr.Gangl innumerable times but have been
> unable to reach him.
>
>
0.9/0.6 531 seat tubes frequently measure 27.4.
Phil Brown
it's a scorcher today in Berkeley, Calif.