Re: [CR]A tip: Seatpost slides down

(Example: Framebuilders:Bernard Carré)

From: "Jon Schaer" <jschaer@columbus.rr.com>
To: "Joe Bender-Zanoni" <joebz@optonline.net>, <classicrendezvous@bikelist.org>
References: <BAY4-F18jZpt5OMuJGF0000844b@hotmail.com> <00bc01c3a271$e92dc180$6400a8c0@jfbender>
Subject: Re: [CR]A tip: Seatpost slides down
Date: Mon, 3 Nov 2003 21:25:51 -0500


----- Original Message ----- From: "Joe Bender-Zanoni" <joebz@optonline.net>
>
> The trick to opening up the slot is to use TWO hacksaw blades in the hacksaw
> frame, side by side. Works like a charm.

Joe/All,

I'd be cautious using this technique. If the binder ears have bent inward enough to touch, the lack of seatpost clamping force is only 1/2 of the problem, which relieving the binder ears does solve. The other problem is that the hole in each ear is no longer parallel and co-axial. This causes the binder bolt to bend as it is tightened, and can cause failures just like non-parallel rear drops can cause hub axle breakages. I have preferred to try to set them back in place by using a stout round-shaft screwdriver (or similar) for leverage, or by prying outward from the slot side with a stout flat-blade screwdriver. These techniques have downsides, too, though. The binder bolt hole or slot edge can get distorted from localized pressure. I always try to use the largest tool possible in each case.

Jon Schaer
Columbus, OH