Busting the same spoke twice, what's going on?

Busting the same spoke twice, what's going on?

Post by Dave » Wed, 10 Apr 2013 04:40:35


Quote:


> > YEAH that's the Chevy Method. Doahn start ? replace starter then work back from there replacing everything with new parts until it starts.

> zzzzzzzzzzz

> off course, izzit the same spoke ?  

> sooooooo, tellus how you marked the spoke hole ...

> Icy, you always mark your spoke holes ?

> When did you begin this procedure ?

> are there witnesses we could interview ?

Hey all, thanks for the helpful replies.

I did reuse the ***, and on further inspection found other spokes with different gauges (I guess this is what I had on hand when I built the wheel).

Although the wheel was true and round, and impressionistically the spoke tension felt fine, I suspect with the mix of gauges the tension was all over the place.

I suspect that in replacing the busted spoke I set the tension too high on the replacement.

 
 
 

Busting the same spoke twice, what's going on?

Post by AMuz » Wed, 10 Apr 2013 04:57:33


Quote:


>>> YEAH that's the Chevy Method. Doahn start ? replace starter then work back from there replacing everything with new parts until it starts.

>> zzzzzzzzzzz

>> off course, izzit the same spoke ?

>> sooooooo, tellus how you marked the spoke hole ...

>> Icy, you always mark your spoke holes ?

>> When did you begin this procedure ?

>> are there witnesses we could interview ?

> Hey all, thanks for the helpful replies.

> I did reuse the ***, and on further inspection found other spokes with different gauges (I guess this is what I had on hand when I built the wheel).

> Although the wheel was true and round, and impressionistically the spoke tension felt fine, I suspect with the mix of gauges the tension was all over the place.

> I suspect that in replacing the busted spoke I set the tension too high on the replacement.

I haven't offered any comments yet as your situation isn't
clear to me but getting the wheel to spin in your bicycle
entails appropriate tension on the replaced spoke.

Overall tension may be high, but that's easily checked.

--
Andrew Muzi
  <www.yellowjersey.org/>
  Open every day since 1 April, 1971

 
 
 

Busting the same spoke twice, what's going on?

Post by Jame » Wed, 10 Apr 2013 07:11:25


Quote:

>> Hey all,

>> I rebuilt some trusty old hubs with new rims and spokes (DA 7700 hubs, Sapim Race 14/15, Velocity A23 rims) using a cheapo truing stand and tensioning by feel but I'm decently skilled at this so the wheels turned out nicely (or so I thought).

>> Anyway, after maybe 1000 miles of use I broke a rear NDS spoke at the ***

> If this is a trailing spoke, you possibly need to tighten up all the
> trailing spokes and possibly ease all the leading spokes.  Check the
> entry depth into the *** of leading and trailing spokes to see if
> the error is obvious.    In future when tensioning up set initial
> tension on all so that the threads just dissapear, then pull in all
> the trailing spokes by 1/2 turn on the sprocket side and the realtive
> balanced amount on the other.  .

I'd love to see that done and the spoke tension measured afterward.

Can you also build a wheel with two trailing spokes to every one leading
spoke?

--
JS.

 
 
 

Busting the same spoke twice, what's going on?

Post by datakol » Wed, 10 Apr 2013 09:37:47

WAS THE BROKEN SPOKE PART OF A CORRECTION FOR A BENT RIM AREA ?
 
 
 

Busting the same spoke twice, what's going on?

Post by AMuz » Wed, 10 Apr 2013 09:52:01

Quote:

> WAS THE BROKEN SPOKE PART OF A CORRECTION FOR A BENT RIM AREA ?

Are we celebrating capslock Monday again?

HOLD IT UP TO YOUR SCREEN AND SPIN IT.
I CAN'T SEE IT FROM HERE.

--
Andrew Muzi
  <www.yellowjersey.org/>
  Open every day since 1 April, 1971

 
 
 

Busting the same spoke twice, what's going on?

Post by Jame » Wed, 10 Apr 2013 10:19:29


Quote:

>> WAS THE BROKEN SPOKE PART OF A CORRECTION FOR A BENT RIM AREA ?

> Are we celebrating capslock Monday again?

Not me.  It's Tuesday already.

--
JS.

 
 
 

Busting the same spoke twice, what's going on?

Post by thirty-si » Wed, 10 Apr 2013 10:33:37


Quote:


> >> Hey all,

> >> I rebuilt some trusty old hubs with new rims and spokes (DA 7700 hubs, Sapim Race 14/15, Velocity A23 rims) using a cheapo truing stand and tensioning by feel but I'm decently skilled at this so the wheels turned out nicely (or so I thought).

> >> Anyway, after maybe 1000 miles of use I broke a rear NDS spoke at the ***

> > If this is a trailing spoke, you possibly need to tighten up all the
> > trailing spokes and possibly ease all the leading spokes. ?Check the
> > entry depth into the *** of leading and trailing spokes to see if
> > the error is obvious. ? ?In future when tensioning up set initial
> > tension on all so that the threads just dissapear, then pull in all
> > the trailing spokes by 1/2 turn on the sprocket side and the realtive
> > balanced amount on the other. ?.

> I'd love to see that done and the spoke tension measured afterward.

Not here, I've no need to bother with such sophistry.

Quote:

> Can you also build a wheel with two trailing spokes to every one leading
> spoke?

I have no desire to..
 
 
 

Busting the same spoke twice, what's going on?

Post by thirty-si » Wed, 10 Apr 2013 10:40:01


Quote:


> > > YEAH that's the Chevy Method. Doahn start ? replace starter then work back from there replacing everything with new parts until it starts.

> > zzzzzzzzzzz

> > off course, izzit the same spoke ?

> > sooooooo, tellus how you marked the spoke hole ...

> > Icy, you always mark your spoke holes ?

> > When did you begin this procedure ?

> > are there witnesses we could interview ?

> Hey all, thanks for the helpful replies.

> I did reuse the ***, and on further inspection found other spokes with different gauges (I guess this is what I had on hand when I built the wheel).

> Although the wheel was true and round, and impressionistically the spoke tension felt fine, I suspect with the mix of gauges the tension was all over the place.

> I suspect that in replacing the busted spoke I set the tension too high on the replacement.

there's a lot of it around.
 
 
 

Busting the same spoke twice, what's going on?

Post by datakol » Wed, 10 Apr 2013 21:54:48

well, within my limited experience spokes break at ***s from olde spokes like baaaaad old spokes....our poster appears headed in this direction.

as the catch basin for corrosive debris at the last thread headed into *** corroded thru and SNAP uroute.

or  combo of bent rim torque and corrosion.

man needs a batch of new spokes for this summer. comprendough ?

Mr Keyboard nhen see the notches into CAPS, I type unaware when finished look up and expletive deleted

DESPITE THE FACT CAPS ANNPYS PEOPLE I SEND THE EFFLUENCE OFF redoing is a PITA
wasnot worth in 1 place.

 
 
 

Busting the same spoke twice, what's going on?

Post by thirty-si » Thu, 11 Apr 2013 00:01:52


Quote:
> well, within my limited experience spokes break at ***s from olde spokes like baaaaad old spokes....our poster appears headed in this direction.

Spokes break through bending back and forth.  You just don't see it
because you are not looking close enough when the bending is
occurring.

Quote:

> as the catch basin for corrosive debris at the last thread headed into *** corroded thru and SNAP uroute.

Spokes may and do survive well despite corrosion holes at the thread.
The engaged *** thread is normally softer and weaker than the spoke
thread or spoke of half the x-sect area.  There is much room for
corrosion to have no outcome on the life of a spoke, unless there is
bending.

Quote:

> or ?combo of bent rim torque and corrosion.

> man needs a batch of new spokes for this summer. comprendough ?

While that makes the best start to a wheel build, I have used mixed
spokes to repair wheels without problem.
Quote:

> Mr Keyboard nhen see the notches into CAPS, I type unaware when finished look up and expletive deleted

> DESPITE THE FACT CAPS ANNPYS PEOPLE I SEND THE EFFLUENCE OFF redoing is a PITA
> wasnot worth in 1 place.

 
 
 

Busting the same spoke twice, what's going on?

Post by Dan » Thu, 11 Apr 2013 09:48:23


Quote:

> > well, within my limited experience spokes break at ***s from olde spokes like baaaaad old spokes....our poster appears headed in this direction.

> Spokes break through bending back and forth.  You just don't see it
> because you are not looking close enough when the bending is
> occurring.

> > as the catch basin for corrosive debris at the last thread headed into *** corroded thru and SNAP uroute.

> Spokes may and do survive well despite corrosion holes at the thread.
> The engaged *** thread is normally softer and weaker than the spoke
> thread or spoke of half the x-sect area.  There is much room for
> corrosion to have no outcome on the life of a spoke, unless there is
> bending.

The intriguing thing here is never a broken spoke, then twice in the
same hole.

Quote:

> > or  combo of bent rim torque and corrosion.

> > man needs a batch of new spokes for this summer. comprendough ?

> While that makes the best start to a wheel build, I have used mixed
> spokes to repair wheels without problem.

That's why I quesitoned the rim, though there are many possible
variables in play.

<snip>