Sun rim and spoke hole 'handedness'



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D

Dan Daniel

Guest
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.

http://www.sun-ringle.com/ShowRoom/ROAD/Rims/images/Assault.jpg

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?
 
D

Dianne_1234

Guest
On Sat, 14 Feb 2004 15:44:00 -0800, Dan Daniel
<[email protected]> wrote:

>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.
>
>http://www.sun-ringle.com/ShowRoom/ROAD/Rims/images/Assault.jpg
>
>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.
 
M

Mike S.

Guest
"dianne_1234" <[email protected]> wrote in message
news:[email protected]...
> On Sat, 14 Feb 2004 15:44:00 -0800, Dan Daniel <[email protected]> wrote:
>
> >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.
> >
> >http://www.sun-ringle.com/ShowRoom/ROAD/Rims/images/Assault.jpg
> >
> >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
 
J

Jobst Brandt

Guest
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.

http://www.sun-ringle.com/ShowRoom/ROAD/Rims/images/Assault.jpg

> 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?

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 protected]
 
D

Dan Daniel

Guest
On Sat, 14 Feb 2004 18:35:45 -0600, dianne_1234
<[email protected]> wrote:

>On Sat, 14 Feb 2004 15:44:00 -0800, Dan Daniel <[email protected]> wrote:
>
>>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.
>>
>>http://www.sun-ringle.com/ShowRoom/ROAD/Rims/images/Assault.jpg
>>
>>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.
 
D

Dan Daniel

Guest
On Sun, 15 Feb 2004 03:13:46 GMT, [email protected]
wrote:

>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.
>
>http://www.sun-ringle.com/ShowRoom/ROAD/Rims/images/Assault.jpg
>
>> 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?
>
>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 protected]

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.
 
D

Dan Daniel

Guest
On Sat, 14 Feb 2004 17:12:47 -0800, "Mike S." <[email protected]>
wrote:

>
>"dianne_1234" <[email protected]> wrote in message
>news:[email protected]...
>> On Sat, 14 Feb 2004 15:44:00 -0800, Dan Daniel <[email protected]> wrote:
>>
>> >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.
>> >
>> >http://www.sun-ringle.com/ShowRoom/ROAD/Rims/images/Assault.jpg
>> >
>> >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.
 
H

Hugh Fenton

Guest
"Dan Daniel" <[email protected]> wrote in message
news:[email protected]...
> On Sun, 15 Feb 2004 03:13:46 GMT, [email protected] wrote:
>
> >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
 
D

Dan Daniel

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

>
>"Dan Daniel" <[email protected]> wrote in message
>news:[email protected]...
>> On Sun, 15 Feb 2004 03:13:46 GMT, [email protected] wrote:
>>
>> >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?
 

BaCardi

New Member
Jul 6, 2003
638
0
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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.

http://www.sun-ringle.com/ShowRoom/ROAD/Rims/images/Assault.jpg

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
 
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