RE: [CR]Question about Dura Ace AX seat post sizing.

Example: Framebuilders:Rene Herse

From: "Steve Birmingham" <>
To: <>
Subject: RE: [CR]Question about Dura Ace AX seat post sizing.
Date: Wed, 9 Nov 2005 16:42:04 -0500
In-Reply-To: <>

Of course John is right, It was Tange tubing. Either this cold is worse than I thought, or I've got to stop working on OT aero projects for awhile.

Steve Birmingham Lowell, Ma

-----Original Message----- From: John Thompson [] Sent: Wednesday, November 09, 2005 12:35 PM To: Steve Birmingham Cc: Subject: Re: [CR]Question about Dura Ace AX seat post sizing.

Steve Birmingham wrote:
> All the full aero ones I have are sized to fit the true temper aero
> tubing, roughly 1 1/8 long axis by 3/4 short axis.

The first AX posts were designed to use Tange "Aero" tubing; Columbus, Reynolds, etc. came out later with their own vesions.
> There may have been one to fit Columbus "air" tubing, which was
> thinner on the short axis, but I've never seen one.

I don't think Shimano made a post for the Columbus Air tubing; the tube sets included an appropriate seatpost (and lugs and BB shell) in any case.


-John Thompson (
Appleton WI USA