Re: [CR] 753 vs 531

Example: Racing:Beryl Burton
Date: Fri, 01 Jul 2005 14:57:14 -0500
From: "John Thompson" <>
Organization: The Crimson Permanent Assurance
Subject: Re: [CR] 753 vs 531
References: <D24CD8D2A42DBE408E31D99568D7AAFF03DFD7A6@MLSSWN02P.WAS.INT.IMF.ORG>

Bingham, Wayne wrote:
> I have three frames built with 753 tubing; '89 Merckx Grand Prix, '85
> Raleigh Team USA, and '84 custom Trek track frame. Only the Raleigh
> sports a 753R sticker. Both the Raleigh and the Trek are currently
> built up with Campy components, the Merckx is not built up, but was my
> primary ride for many years (and many miles), and I used a Cd'A post.
> All are currently in storage due to my shop construction project, so I
> can't go do an in-depth analysis, but I'm pretty confident that all use
> 27.2 seat posts.
> How does that fit into the 753 puzzle?

I don't know about the others, but if the Trek is the one on the Vintage-Trek web site, I had a hand in building that frame. It used the same 753R tubing (except for the fork blades) as the model 170 road frames, and should take a 27.4mm post.


-John Thompson (
Appleton WI USA