Re: [CR]Straightening an out of true rim

(Example: Events:Cirque du Cyclisme:2002)

Date: Sun, 13 Jan 2008 11:15:50 -0600 (CST)
From: <smwillis@verizon.net>
Subject: Re: [CR]Straightening an out of true rim
To: classicrendezvous@bikelist.org, Jerome & Elizabeth Moos <jerrymoos@sbcglobal.net>


Just to make sure I know where you are coming from you have a rim the moves to the side right? The best time I have used is to loosen up a lot of the spokes around the offending area and pry it back. A 2x4 plank of wood nailed to an open stair case like down in the basement is great just do it is small increments and on lighter weight rims I pad it up a bit. If you can another way that all ways gets the customer to drop their jaws is to over fill the tire somewhat and loosen said spoke again and smack it down on the floor . Do it in harder and harder hits until you see it start to move. I like first one better it has a little more control. Remind me again about the spoke Jerry.
>From: Jerome & Elizabeth Moos <jerrymoos@sbcglobal.net>
>Date: 2008/01/13 Sun AM 10:14:15 CST
>To: classicrendezvous@bikelist.org
>Subject: [CR]Straightening an out of true rim
>What techniques do yall have for straightening an out of true rim? I'm not talking pretzeled, but one that just won't true up with practical spoke tension?
>
> I have a nice, if dirty, pair of wheels with Campy NR hubs and Mavic Open 4 CD rims that came on my early 80's Cuevas. When I tried to use the rear on another bike I discovered it has a large lateral "hop". Put it on the stand yesterday, and although I was able to reduce the hop some, it still is too big to be acceptable in use. This was despite making the offside spokes in the area as slack as I dared, and tightening the drive side probably well above 100 Kg. Must be DT or other high quality spokes, else they would probably have broken or rounded off. One of the problems is the hop is very localized, just by the seam, so one individual drive side spoke had to be tightened very tight.
>
> Anyone have a technique that might work, short of removing all the spokes from the rim? If I'm going to have to completely rebuild the wheel, I'll probably just use a new Mavic Open 4 CD, sinces I have plenty of them.
>
> Regards,
>
> Jerry Moos
> Big Spring, TX
>
>
>
>
>_______________________________________________

Stevn Willis
The Bike Stand
1778 East 2nd Street
Scotch Plains NJ 07076
thebikestand.com
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