stress relieving used wheels?

Alex Graham said:

Is it a good or bad idea to stress relieve a factory built wheel (that has probably never had
stress relieving treatment) but that has done 3k miles or so?

This is a case where "better late than never" is correctly applied. Yes do it.

Jobst Brandt [email hidden] Palo Alto CA

Alex Graham said:

Is it a good or bad idea to stress relieve a factory built wheel (that has probably never had
stress relieving treatment) but that has done 3k miles or so? cheers,

I guess it is too late. Provided you have not ridden on velvet, that has been taken care of already
(and I hope you have, in the meantime, done touch-ups to keep your wheels as true as possible).

Sergio Pisa

Sergio SERVADIO said:

Alex Graham said:

Is it a good or bad idea to stress relieve a factory built wheel (that has probably never had
stress relieving treatment) but that has done 3k miles or so? cheers,

I guess it is too late. Provided you have not ridden on velvet, that has been taken care
of already

Tension does not increase significantly in any of your spokes when you're riding. You need to
stress-relieve by hand.

--
Benjamin Lewis

A small, but vocal, contingent even argues that tin is superior, but they are held by most to be the
lunatic fringe of Foil Deflector Beanie science.

I think the 3k miles are the stress relieve treatment for your wheel. What do you think of that
Jobst? Doc. <[email hidden]> a écrit dans le message de news:
[email hidden]...

Quoted message said:

Alex Graham said:

Is it a good or bad idea to stress relieve a factory built wheel (that has probably never had
stress relieving treatment) but that has done 3k miles or so?

This is a case where "better late than never" is correctly applied. Yes do it.

Jobst Brandt [email hidden] Palo Alto CA

Quoted message said:

I think the 3k miles are the stress relieve treatment for your wheel. What do you think of that
Jobst? Doc.

Well, I'm not Jobst, but what makes you think that riding on a wheel will stress relieve it?

--
Benjamin Lewis

It takes two to tell the truth: one to speak and one to hear.

Stress relieving involves a temporary and substantial increase in spoke tension. That doesn't happen
in the course of normal riding, as the tension is highest at rest, with no load on the wheel.

Quoted message said:

I think the 3k miles are the stress relieve treatment for your wheel. What do you think of that
Jobst? Doc.

Quoted message said:

Quoted message said:

Quoted message said:

Is it a good or bad idea to stress relieve a factory built wheel (that has probably never had
stress relieving treatment) but that has done 3k miles or so?

This is a case where "better late than never" is correctly applied. Yes do it.

Jobst Brandt

--
Ted Bennett Portland OR

Riding on a wheel will stress relieve it? I think yes. True a wheel or build a wheel and don't
stress relieve treatment on this wheel and go ride with
it. You will heard many ``sounds'' of the spokes:that is stress relieve.Doc "Benjamin Lewis"
<[email hidden]> a écrit dans le message de news: [email hidden]...

Quoted message said:

Quoted message said:

I think the 3k miles are the stress relieve treatment for your wheel. What do you think of that
Jobst? Doc.

Well, I'm not Jobst, but what makes you think that riding on a wheel will stress relieve it?

--
Benjamin Lewis

It takes two to tell the truth: one to speak and one to hear.

When you ride your bike,you are increasing the spoke tension. The guy on the saddle put a charge on
the wheels,on the spokes.When you turn the handlebar you are putting a charge on the spokes.When you
apply the brakes you put a charge on the spokes.Doc "Ted Bennett" <[email hidden]> a écrit
dans le message de news: [email hidden]...

Quoted message said:

Stress relieving involves a temporary and substantial increase in spoke tension. That
doesn't happen in the course of normal riding, as the tension is highest at rest, with no
load on the wheel.

Quoted message said:

I think the 3k miles are the stress relieve treatment for your wheel.

What

Quoted message said:

Quoted message said:

do you think of that Jobst? Doc.

Quoted message said:

Quoted message said:

> Is it a good or bad idea to stress relieve a factory built wheel

(that

Quoted message said:

Quoted message said:

Quoted message said:

> has probably never had stress relieving treatment) but that has done

3k

Quoted message said:

Quoted message said:

Quoted message said:

> miles or so?

This is a case where "better late than never" is correctly applied. Yes do it.

Jobst Brandt

--
Ted Bennett Portland OR

Quoted message said:

Riding on a wheel will stress relieve it? I think yes. True a wheel or build a wheel and don't
stress relieve treatment on this wheel and go ride with it. You will heard many ``sounds'' of the
spokes:that is stress relieve.

No, that is twisted spokes unwinding.

--
Benjamin Lewis

On a paper submitted by a physicist colleague: "This isn't right. This isn't even wrong." --
Wolfgang Pauli

Quoted message said:

When you ride your bike,you are increasing the spoke tension.

No, when you ride your bike, you are *decreasing* the spoke tension.

--
Benjamin Lewis

On a paper submitted by a physicist colleague: "This isn't right. This isn't even wrong." --
Wolfgang Pauli

Quoted message said:

No, when you ride your bike, you are *decreasing* the spoke tension.

its it, decreasing *average* tension??? otherwise you are say that if l load the wheel enough there
will be no tension on the spokes

and if riding on a wheel(back wheel more than the front, because it has the torque from pedaling,
unless of course you have a disc front) doesn't stress relieve the wheel over time. then why stress
relieve them by hand first?

never built a wheel in my life have straighten a few

Quoted message said:

Quoted message said:

No, when you ride your bike, you are *decreasing* the spoke tension.

its it, decreasing *average* tension??? otherwise you are say that if l load the wheel enough
there will be no tension on the spokes

That's right, if you load the wheel too much there will be no tension in the spokes (the ones
between the hub and the road).

There will be a very small increase in tension in all the other spokes, but not enough to stress
relieve them.

Quoted message said:

and if riding on a wheel(back wheel more than the front, because it has the torque from pedaling,
unless of course you have a disc front) doesn't stress relieve the wheel over time. then why
stress relieve them by hand first?

To prevent fatigue. See Jobst Brandt's book, _The Bicycle Wheel_, for more information.

--
Benjamin Lewis

On a paper submitted by a physicist colleague: "This isn't right. This isn't even wrong." --
Wolfgang Pauli

still don't get it what part of the spoke are you stress relieving? the way l see it, it is where
the spokes cross each other, right? (looking at the pic on Mr sheldon browns page) ie bending the
spokes so they sit well against each other while l agree that this may make a "wheel that is true
and round, and will stay that way better than most machine made wheels" but l don't understand how
it helps with fatigue. don't most spokes break at the nipple end?

am dieing to go my spokes with and old crank, just trying to understand why

Quoted message said:

still don't get it what part of the spoke are you stress relieving?

The parts that are near their yield point.

Quoted message said:

the way l see it, it is where the spokes cross each other, right? (looking at the pic on Mr
sheldon browns page)

You stress relieve by momentarily increasing tension in the spokes, so that the parts at high stress
points will deform plastically and take a new set. When you remove the tension (i.e. let go of the
spokes) these points will relax to lower stress.

Quoted message said:

ie bending the spokes so they sit well against each other while l agree that this may make a
"wheel that is true and round, and will stay that way better than most machine made wheels" but l
don't understand how it helps with fatigue. don't most spokes break at the nipple end?

Yes, this is where most of the initial high stresses are.

Have a look at Jobst Brandt's book, he explains it much better than I can.

avocet.comwheelbook.htmlOpen ↗

--
Benjamin Lewis

On a paper submitted by a physicist colleague: "This isn't right. This isn't even wrong." --
Wolfgang Pauli

Stu who? writes shyly:

Quoted message said:

still don't get it

If you "don't get it" then why are you trying to tell others what stresses spokes sustain and how to
stress relieve?

Quoted message said:

never built a wheel in my life have straighten a few

That's not a good resume on which to build credibility in wheel building.

Quoted message said:

and if riding on a wheel(back wheel more than the front, because it has the torque from pedaling,
unless of course you have a disc front) doesn't stress relieve the wheel over time. then why
stress relieve them by hand first?

I think you are there where wheel builders were many years ago. Stress and load cycles of spokes and
how spokes fail is apparently not obvious. You could inform yourself on these matters at a bike shop
that carries "the Bicycle Wheel" in their book department or you could order it from:

avocet.comwheelbook.htmlOpen ↗ tinyurl.com8yl8Open ↗

Quoted message said:

what part of the spoke are you stress relieving?

Those with residual high stresses, there where spokes generally fail because they are not
stress relieved.

Quoted message said:

the way l see it, it is where the spokes cross each other, right?

Wrong.

Quoted message said:

(looking at the pic on Mr sheldon browns page) ie bending the spokes so they sit well against each
other while l agree that this may make a "wheel that is true and round, and will stay that way
better than most machine made wheels"

That is not the goal of his method.

Quoted message said:

but l don't understand how it helps with fatigue. don't most spokes break at the nipple end?

That is because you don't understand what causes spoke failure. You ought to at least read the FAQ:

draco.acs.uci.edu8c.1.htmlOpen ↗

Quoted message said:

am dieing to go my spokes with and old crank, just trying to understand why

You don't need an old crank to do that. Meanwhile, please take a course in English so your
meandering thoughts are more readable. Nouveau spelling and punctuation is gauche and dilettantish.

Jobst Brandt [email hidden] Palo Alto CA

stu said:

am dieing to go my spokes with and old crank, just trying to understand why

Have a look at:

yarchive.netstress relieve.htmlOpen ↗

thanks, l understand what you are saying now just one more qestion is there anyway to tell if cheap
wheels have been stress relieved or do you just asume that they haven't been?

Quoted message said:

If you "don't get it" then why are you trying to tell others what stresses spokes sustain and how
to stress relieve?

umm where?

Quoted message said:

Quoted message said:

never built a wheel in my life have straighten a few

That's not a good resume on which to build credibility in wheel building

umm where did l say l had any credibility as a wheel builder? the point of putting it there, was so
people would know l have no idea what l was on about

asking questions

Quoted message said:

just trying to understand why

so sorry that my english offends you but thanks for your answers anyway

Quoted message said:

clip -------

Quoted message said:

Quoted message said:

am dieing to go my spokes with and old crank, just trying to understand why

Quoted message said:

You don't need an old crank to do that. Meanwhile, please take a course in English so your
meandering thoughts are more readable. Nouveau spelling and punctuation is gauche and dilettantish.

Jobst Brandt [email hidden] Palo Alto CA

After mention here of crank as stress relieving tool, I offer an alternative which I have found
"delicious" for grabbing and twisting those spokes:

A hickory handled tackhammer. The hammer head makes a nice T-wrench grip, length (10"😉 is just right
for leverage. The oval 1" handle provides a great shape and surface for the bending spokes.

As with all wodden-handled tools, an infrequent linseed oil rubbing is a treat.

Fits like a Brooks, and no skid.

Bruce Ball