Re: [CR]6 spd. indexing problem

(Example: Framebuilders:Doug Fattic)

In-Reply-To: <3B0484B1.A91152F8@verinet.com>
References: <3B0484B1.A91152F8@verinet.com>
Date: Thu, 17 May 2001 22:57:00 -0400
To: Rod Kronenberg <rod@verinet.com>, Classicrendezvous@bikelist.org
From: "Sheldon Brown" <CaptBike@sheldonbrown.com>
Subject: Re: [CR]6 spd. indexing problem


Rod Kronenberg wrote:
>Hi all,
>
>I have a Peugeot PGN-10 that I use as my everyday "rider".
>When I bought the bike it had a real mix of various components on it,
>and I junked them in favor of an older Shimano 600 indexed drive train.
>
>Everything is great but the 6 speed indexed shifting. When pedaling
>hard, it will autoshift. I've tried greasing the shifting cable under
>the
>bottom bracket per Sheldon's article, new freewheel's, chains, etc. I
>think
>the problem is in the shift levers themselves, they don't quite mate up
>to the
>frame properly due to the braze-ons being mounted on a "lug"(?). The
>little
>plastic spacers don't quite mate up with the frame due to this lug, and
>the
>screws to bolt the levers up are a bit short. Also, while the levers do
>index,
>4 of the 6 gears don't really click into place solidly like they should.
>
>Has anyone ever solved this problem? I'd love some advice before I take
>a file to it!

The original 6-speed 600 EX levers had a design defect. There were 5 thin little tabs that secured the index unit to the adaptor bushing, but they would tend to break off. This is very common. The symptoms are as you describe. The only fix is new levers, but not 6-speeds.

Sheldon "Upgrade Time" Brown +----------------------------------------+ | All theory, dear friend, is grey, | | but the golden tree of actual life | | springs ever green. --Goethe | +----------------------------------------+
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