Re: [CR]RRA fixed side cup removal

(Example: Framebuilding:Norris Lockley)

In-Reply-To: <000a01c7094b$70500cc0$89ca6851@nonefpfvwek4mv>
References: <000a01c7094b$70500cc0$89ca6851@nonefpfvwek4mv>
Date: Fri, 17 Nov 2006 12:10:20 -0500
To: "Peter Brown" <peterg.brown@ntlworld.com>, <GRIFFKS@aol.com>
From: "Sheldon Brown" <CaptBike@sheldonbrown.com>
Subject: Re: [CR]RRA fixed side cup removal
cc: classicrendezvous@bikelist.org

Peter Brown wrote:
>
>The RRA fixed side cup does have threads, but the last little bit of the
>cup is without thread, to stop it going any further in, so it then appears
>to be threadless. The 2 flats are very shallow, and need a keen edge spann er
>to grip on them. They are also very brittle and easily crack off, so be
>careful. It you are unable to get a grip with your spanner try using a ¾ ”
>nut and bolt and some washers through the cup to clamp the spanner in
>position. If that fails, use the nut and bolt with some packing washers
>to sandwich the flat of the cup. As you tighten the grip of the nut and
>bolt it will frequently remove the cup.

I have a detailed article on this, with photos at:

http://sheldonbrown.com/tooltips/bbcups.html

Sheldon "Bolts" Brown +-------------------------------------------------------------+ | If brute force doesn't work, you're not using enough! | | --BOB Simon | +-------------------------------------------------------------+ --
    Harris Cyclery, West Newton, Massachusetts
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