Donald Gillies writes:
>> The Mavic 517's on my beloved Marin Team Issue won't stay
>> true anymore and the LBS says they are ready to go.
Well that's basically BS unless they showed you cracks or
kinks from crashing.
> What the heck does he mean "They won't stay true anymore".
> I have only had a single pair of rims that wouldn't stay
> true, and these were heat-treated rims. Once they bent,
> they NEVER got true again, because they were just too
> darned stiff.
No matter how much you heat treat aluminum or work harden
it, it's elasticity does not change. I suspect the
wheelbuilder who made the assessment you express had no idea
of how to true a wobbly wheel, or for that matter, what to
do if a rim gets a non-fatal wow in it. This has nothing to
do with heat treatment.
> Assuming your rims are normal raw aluminum or anodized
> aluminum, it should always be possible to pull them true.
> If not, you can always cut off all the spokes and jump on
> the rim till it's flat (don't laugh, i've done this
> before.)
Ooooh! That hurts. I see you don't understand wheel truing.
THAT is not the way it is done to any reasonable effect and
it's a huge waste of good spokes. Where do you get these
notions. It sounds so macho however.
> I'm thinking that maybe you need either
> 1. new spoke prep, plus re-true
> 2. new set of nipples + spoke prep, plus re-true.
> Since option #2 is probably about $3 more expensive than
> option #1, i'd go with option #2.
Both suggestions should go into the trash bin.
Jobst Brandt
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