Re: [CR]Internal expander seatposts ??

Example: Events:Cirque du Cyclisme

Date: Tue, 20 Apr 2004 14:34:43 -0700 (PDT)
From: Fred Rafael Rednor <>
Subject: Re: [CR]Internal expander seatposts ??
In-Reply-To: <>

> Speaking about internal expander seatposts,
       > I have a 1940's Italian frame with cambio
       > corsa that has one of these expander seatposts.
       > After more than 50 years it still works
       > and has not damaged the tubing. Steven,
    Thanks for the info. I always associated these posts with French bicycles and some strange looking designs. Then again, I wouldn't have been aware of this sort of thing until the mid '60s.
     Is this a straight post with a separate clamp? One reason the French pieces I've seen had such unusual designs is that they incorporated an integrated clamp like a moderm post. So one way or another they had to accomodate the clamp and the bolt for the expander.
     But a straight pillar without an integral clamp would be normal for the '40s and a much simpler design.
     Best regards,
     Fred Rednor - Arlington, Virginia