Sun rim and spoke hole 'handedness'

Dan Daniel said:

I'm getting set to lace up a Sun rim- Assault. This is an aero shaped rim (although short) so the
surface which has the spoke holes is narrow- wide enough for the eyelet and that's it.

sun-ringle.comAssault.jpgOpen ↗

Looking at the spoke holes, I cannot see that alternate holes are tilted to one side or the other.
The Sun web site shows a 5 degree tilt to one side but I can't pick this up

Any tricks to confirming which way a spoke hole is tilted?

Often in pointed rims like the Assault the spoke hole that goes through the tire well will have most
of the lateral displacement.

In that case, the holes in the tire well that are toward the left of the rim should contain spokes
connecting to the right hub flange.

"dianne_1234" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Dan Daniel said:

I'm getting set to lace up a Sun rim- Assault. This is an aero shaped rim (although short) so the
surface which has the spoke holes is narrow- wide enough for the eyelet and that's it.

sun-ringle.comAssault.jpgOpen ↗

Looking at the spoke holes, I cannot see that alternate holes are tilted to one side or the
other. The Sun web site shows a 5 degree tilt to one side but I can't pick this up

Any tricks to confirming which way a spoke hole is tilted?

Often in pointed rims like the Assault the spoke hole that goes through the tire well will have
most of the lateral displacement.

In that case, the holes in the tire well that are toward the left of the rim should contain spokes
connecting to the right hub flange.

I think what is trying to be said is to flip the rim over so you're looking into the bead area. The
holes should be offset more noticeably here. If the hole's on the left, spoke comes out on the
right, etc.

Someone please correct me if I'm wrong, its been awhile since I've had to resort to this...

Mike

Dan Daniel said:

I'm getting set to lace up a Sun rim- Assault. This is an aero shaped rim (although short) so the
surface which has the spoke holes is narrow- wide enough for the eyelet and that's it.

sun-ringle.comAssault.jpgOpen ↗

Quoted message said:

Looking at the spoke holes, I cannot see that alternate holes are tilted to one side or the other.
The Sun web site shows a 5 degree tilt to one side but I can't pick this up

Quoted message said:

Any tricks to confirming which way a spoke hole is tilted?

From the web site you cite, the eyelet offset is to the inside (bed of the rim) and not visible on
the outside. Eyelets offset to the left in the bed of the rim are angles for right side spokes and
conversely.

Jobst Brandt [email hidden]

dianne_1234 said:

Dan Daniel said:

I'm getting set to lace up a Sun rim- Assault. This is an aero shaped rim (although short) so the
surface which has the spoke holes is narrow- wide enough for the eyelet and that's it.

sun-ringle.comAssault.jpgOpen ↗

Looking at the spoke holes, I cannot see that alternate holes are tilted to one side or the other.
The Sun web site shows a 5 degree tilt to one side but I can't pick this up

Any tricks to confirming which way a spoke hole is tilted?

Often in pointed rims like the Assault the spoke hole that goes through the tire well will have
most of the lateral displacement.

In that case, the holes in the tire well that are toward the left of the rim should contain spokes
connecting to the right hub flange.

Aha. So I can't see this visually, and take some measurement. Lo and behold, a hole is offset half a
millimeter to one side. Just to be sure, I check the next hole. Offset half a millimeter- to the
same side!!!!!!

Going around the inside, looks as if there is a slight wobble in the inner hole location, but that
it won't tell me if the actual spoke hole is offset.

I wonder if the 5 degree tilt shown on the web site is for the newer version. I have an unwelded
rim, which I assume is older. Maybe it doesn't have an offset or tilt.

I'll drop some spokes through and let them hang- maybe gravity will tell me which way they are
tilted, if at all.

On Sun, 15 Feb 2004 03:13:46 GMT, [email hidden]

Quoted message said:

Dan Daniel said:

I'm getting set to lace up a Sun rim- Assault. This is an aero shaped rim (although short) so the
surface which has the spoke holes is narrow- wide enough for the eyelet and that's it.

sun-ringle.comAssault.jpgOpen ↗

Quoted message said:

Looking at the spoke holes, I cannot see that alternate holes are tilted to one side or the
other. The Sun web site shows a 5 degree tilt to one side but I can't pick this up

Quoted message said:

Any tricks to confirming which way a spoke hole is tilted?

From the web site you cite, the eyelet offset is to the inside (bed of the rim) and not visible on
the outside. Eyelets offset to the left in the bed of the rim are angles for right side spokes and
conversely.

Jobst Brandt [email hidden]

And if there is no inner offset? Taking calipers to those holes, any offset is to the same side for
adjoining holes.

This is an unwelded rim, which I take to be an older version than what is shown on the web site.
Maybe this model had no offset.

On Sat, 14 Feb 2004 17:12:47 -0800, "Mike S." <mikeshaw2@coxDOTnet>

Quoted message said:

"dianne_1234" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Dan Daniel said:

I'm getting set to lace up a Sun rim- Assault. This is an aero shaped rim (although short) so
the surface which has the spoke holes is narrow- wide enough for the eyelet and that's it.

sun-ringle.comAssault.jpgOpen ↗

Looking at the spoke holes, I cannot see that alternate holes are tilted to one side or the
other. The Sun web site shows a 5 degree tilt to one side but I can't pick this up

Any tricks to confirming which way a spoke hole is tilted?

Often in pointed rims like the Assault the spoke hole that goes through the tire well will have
most of the lateral displacement.

In that case, the holes in the tire well that are toward the left of the rim should contain
spokes connecting to the right hub flange.

I think what is trying to be said is to flip the rim over so you're looking into the bead area. The
holes should be offset more noticeably here. If the hole's on the left, spoke comes out on the
right, etc.

Someone please correct me if I'm wrong, its been awhile since I've had to resort to this...

Mike

That's what I hear. If you continued a spoke an extra inch, say, to the outside, one tilted to the
right would emerge further to the left at the outer diameter. The idea being that the inner rim hole
for the spoke nipple would be offset with a center point matching this 'leftward' spoke tilt.

"Dan Daniel" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Quoted message said:

Dan Daniel said:

I'm getting set to lace up a Sun rim- Assault. This is an aero shaped rim (although short) so
the surface which has the spoke holes is narrow- wide enough for the eyelet and that's it.

Any reason you cant just thicken up a spoke with tape, insert, and the natural position of the spoke
would give you the answer???

Hugh Fenton

On Mon, 16 Feb 2004 08:50:13 +0100, "Hugh Fenton" <[email hidden]>

Quoted message said:

"Dan Daniel" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Quoted message said:

Dan Daniel writes:

> I'm getting set to lace up a Sun rim- Assault. This is an aero shaped rim (although short) so
> the surface which has the spoke holes is narrow- wide enough for the eyelet and that's it.

Any reason you cant just thicken up a spoke with tape, insert, and the natural position of the
spoke would give you the answer???

Hugh Fenton

Sounds like a method worth trying. Thanks. SInce I already built up the rim, I'll remember this
suggestion if I have the problem again.

I never did decide which, if any, holes were for left or right. Threading spokes in and letting them
hang, swing, pulling them around, trying to feel as angle- nothing visual or by feel made me think
that any one hole was left or right.

So I just went with what has worked before- the second hole clockwise from the valve for the 'right'
pull and one right behind it for the 'left' pull, based on 'right' being where I could read the rim
label from the right side of the bike. If spokes start breaking and it looks like using the wrong
holes is the problem, I'll know that I had it wrong?

Quoted post said:

Originally posted by Dan Daniel
I'm getting set to lace up a Sun rim- Assault. This is an aero shaped rim (although short) so the
surface which has the spoke holes is narrow- wide enough for the eyelet and that's it.

sun-ringle.comAssault.jpgOpen ↗

Looking at the spoke holes, I cannot see that alternate holes are tilted to one side or the other.
The Sun web site shows a 5 degree tilt to one side but I can't pick this up

Any tricks to confirming which way a spoke hole is tilted?

Chiral rhymes with spiral