Question about wheel with new spokes and rim

Hi,

I have one last question before I go on vacation.I had my Ultegra 36 spokes
CXP 33 wheelset repaired: new spokes and a new rim were installed. Th
efirst ride all went fine, but today, after chasing some cyclists over a
few hill here, I heard noise that was very probably caused by the new
spokes. It wasn't the obvious "ping" you hear when you ride away with a new
wheel, but I heard it especially when climbing or cycling against the
strong wind. I heard it louder when out of the saddle and moving the bike
from left to right while cycling in a straight line (as if you climb a
mountain "en danseuse"😉.

I felt the spoke tension on the side opposite the body by pulling 2 spokes
that crosss towards each other with 2 fingers and I felt there were
differences in tension. My questions:

Is this the likely cause of the noise?
Would it be a good idea after retightening to use a drop of loctite?

Thanks again for your help.

Greetings, Derk

Bill Sornson wrote:

Better like this, Bill?

Thanks!

Greetings, Derk

In article <[email hidden]>, [email hidden]
says...

Quoted message said:

Hi,

I have one last question before I go on vacation.I had my Ultegra 36 spokes
CXP 33 wheelset repaired: new spokes and a new rim were installed. Th
efirst ride all went fine, but today, after chasing some cyclists over a
few hill here, I heard noise that was very probably caused by the new
spokes. It wasn't the obvious "ping" you hear when you ride away with a new
wheel, but I heard it especially when climbing or cycling against the
strong wind. I heard it louder when out of the saddle and moving the bike
from left to right while cycling in a straight line (as if you climb a
mountain "en danseuse"😉.

I felt the spoke tension on the side opposite the body by pulling 2 spokes
that crosss towards each other with 2 fingers and I felt there were
differences in tension. My questions:

Is this the likely cause of the noise?
Would it be a good idea after retightening to use a drop of loctite?

Loctite, no. Retighten, yes, but let the person you paid do it right. This
assumes that they know what they are doing. Somehow I would not be very
confident of this if they let an unevenly tenstioned wheel get to a customer.
The noise you may be hearing is the brake pads rubbing against the rim.
--------------
Alex

Alex Rodriguez said:

Retighten, yes, but let the person you paid do it right.

The strange thing is that this guy has a good reputation for building
wheels. He did it for 20 years in the LBS I normally go to and now does it
at his home...

Quoted message said:

This assumes that they know what they are doing. Somehow I would not be
very confident of this if they let an unevenly tenstioned wheel get to a
customer.

I can just tell by pulling 2 crossed spokes together that tension is not the
same everywhere.

Would you rather take it to the LBS and have them do the retightening? And
will retightening solve the problem?

Greetings, Derk

On Thu, 05 May 2005 20:53:39 +0200, Derk <[email hidden]>

Quoted message said:

Hi,

I have one last question before I go on vacation.I had my Ultegra 36 spokes
CXP 33 wheelset repaired: new spokes and a new rim were installed. Th
efirst ride all went fine, but today, after chasing some cyclists over a
few hill here, I heard noise that was very probably caused by the new
spokes. It wasn't the obvious "ping" you hear when you ride away with a new
wheel, but I heard it especially when climbing or cycling against the
strong wind. I heard it louder when out of the saddle and moving the bike
from left to right while cycling in a straight line (as if you climb a
mountain "en danseuse"😉.

I felt the spoke tension on the side opposite the body by pulling 2 spokes
that crosss towards each other with 2 fingers and I felt there were
differences in tension. My questions:

Non-drive-side rear? Not unusual.

Quoted message said:

Is this the likely cause of the noise?

If it's a once-per-rotation ping, a tiny drop of oil at each spoke
nipple will probably quiet it down.

Quoted message said:

Would it be a good idea after retightening to use a drop of loctite?

No.
--
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Derk said:

Hi,

I have one last question before I go on vacation.I had my Ultegra 36 spokes
CXP 33 wheelset repaired: new spokes and a new rim were installed. Th
efirst ride all went fine, but today, after chasing some cyclists over a
few hill here, I heard noise that was very probably caused by the new
spokes. It wasn't the obvious "ping" you hear when you ride away with a new
wheel, but I heard it especially when climbing or cycling against the
strong wind. I heard it louder when out of the saddle and moving the bike
from left to right while cycling in a straight line (as if you climb a
mountain "en danseuse"😉.

I felt the spoke tension on the side opposite the body by pulling 2 spokes
that crosss towards each other with 2 fingers and I felt there were
differences in tension. My questions:

Is this the likely cause of the noise?
Would it be a good idea after retightening to use a drop of loctite?

Thanks again for your help.

Greetings, Derk

Spoke tension on all the left side spokes should be the same. If they wheel wasn't properly tensioned you will get movement and possibly have spokes nipples that will unwind and things get worse from their.
You know about "the Bicycle Wheel" by Jobst Brandt.

Derk said:

Hi,

I have one last question before I go on vacation.I had my Ultegra 36

spokes

Quoted message said:

CXP 33 wheelset repaired: new spokes and a new rim were installed. Th
efirst ride all went fine, but today, after chasing some cyclists

over a

Quoted message said:

few hill here, I heard noise that was very probably caused by the new
spokes. It wasn't the obvious "ping" you hear when you ride away with

a new

Quoted message said:

wheel,

You should never hear this on a new wheel. If it is properly buult,
with all the windup out of the spokes, it should be silent.

but I heard it especially when climbing or cycling against the

Quoted message said:

strong wind. I heard it louder when out of the saddle and moving the

bike

Quoted message said:

from left to right while cycling in a straight line (as if you climb

a

Quoted message said:

mountain "en danseuse"😉.

I felt the spoke tension on the side opposite the body by pulling 2

spokes

Quoted message said:

that crosss towards each other with 2 fingers and I felt there were
differences in tension. My questions:

Is this the likely cause of the noise?
Would it be a good idea after retightening to use a drop of loctite?

I suspect the tension is low. Correct right side tension on a new rim
means proper left side tension.

Quoted message said:

Thanks again for your help.

Greetings, Derk

Derk said:

I just went to see my LBS and they tensioned all spokes. According to

them,

Quoted message said:

the spokes weren't tensioned enough by the person who built the

wheel, but

Quoted message said:

in principle the wheel was well built. The last step of the wheel

building

Quoted message said:

process hadn't been carried out so to say: none of the spokes had

enough

Quoted message said:

tension.

I used the wheel for about 100 km's before the spokes were properly
tensioned. Will the spokes have suffered form this?

Greetings, Derk

Probably not any problem with the spokes or rim...

Derk said:

I just went to see my LBS and they tensioned all spokes. According
to them, the spokes weren't tensioned enough by the person who built
the wheel, but in principle the wheel was well built. The last step
of the wheel building process hadn't been carried out so to say:
none of the spokes had enough tension.

Quoted message said:

I used the wheel for about 100 km's before the spokes were properly
tensioned. Will the spokes have suffered form this?

No. What may affect spoke life is whether or not they were stress
relieved after tnesioning.

[email hidden]

Derk said:

Hi,

I have one last question before I go on vacation.I had my Ultegra 36 spokes
CXP 33 wheelset repaired: new spokes and a new rim were installed. Th
efirst ride all went fine, but today, after chasing some cyclists over a
few hill here, I heard noise that was very probably caused by the new
spokes. It wasn't the obvious "ping" you hear when you ride away with a new
wheel

Not a *good* new wheel!

, but I heard it especially when climbing or cycling against the

Quoted message said:

strong wind. I heard it louder when out of the saddle and moving the bike
from left to right while cycling in a straight line (as if you climb a
mountain "en danseuse"😉.

One loose spoke can cause this, especially the noise when the bike leans
to one side. I once had a single spoke come inexplicably loose on a
shop-built wheel.

Quoted message said:

I felt the spoke tension on the side opposite the body by pulling 2 spokes
that crosss towards each other with 2 fingers and I felt there were
differences in tension. My questions:

Is this the likely cause of the noise?

Yes, but something is probably *very* loose to cause this. I would take
it back to the shop and have them slacken the whole thing off and
retension it properly.

Quoted message said:

Would it be a good idea after retightening to use a drop of loctite?

It's not necessary or advisable.