Re: [CR]Mechanical question about Cinelli 1-R stem (Josh Berger)

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From: "John Pergolizzi" <jtperry@worldnet.att.net>
To: <Cino1947@aol.com>, <classicrendezvous@bikelist.org>
References: <15f.27b5c6cd.2cd59f59@aol.com>
Subject: Re: [CR]Mechanical question about Cinelli 1-R stem (Josh Berger)
Date: Sat, 1 Nov 2003 20:31:31 -0500


Josh,
      VIP; nice. Had one o those 1-R stems once. Broke right across the bottom of the hbar clamp area at the end of a one hour TT. Got out of the drops, on to the tops of the brake hoods. The whole thing then rotated about 60 to 70 degrees. HELLO! Road home very carefully.
      Yes, lots of grease. Maybe add a bit (Shim stock) to the wedge where she snuggles up to the hbar once you have them apart from their death grip. And keep the heat to yourself. J.T.Pergolizzi N.Y.C.


----- Original Message -----
From: Cino1947@aol.com
To: classicrendezvous@bikelist.org
Sent: Saturday, November 01, 2003 6:44 PM
Subject: [CR]Mechanical question about Cinelli 1-R stem (Josh Berger)



> I have a Cinelli VIP bar-stem with a 1-R stem that I used for about 20 years
> until the bar started to move a few degrees. Tightening the bolt did not help-
> I went through about three of these expensive bolts. Finally, I was told that
> while this stem is cosmetically pretty, it is a poor engineering design- the
> handlebar gets a little squished out of round eventually, so it will always be
> loose.
> The handlebar is a 66-42, OS crest logo- almost impossible to find, and I'd
> like to rescue it, hoping to use it with a 1-A stem.Undoing the bolt completely
> barely allows the handlebar to move.
> Do I go to a machine shop and ask them to cut a wedge in the front of the
> stem, or is there too much of a risk of ruining the handlebar?
> Will heating the stem with a torch help?
> Anybody been through this before?
> Thanks,
> Josh Berger
> Bronx, NY