wheelbuilding, spoke gauge
06-27-12, 02:07 AM
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wheelbuilding, spoke gauge
I am building a set of wheels. My hubs seem to be drilled for 15g spokes. does anyone know where I can find double butted 15/16 gauge spokes?
06-27-12, 07:44 AM
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06-27-12, 08:17 AM
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The other alternative is to pass a 3/32" drill through each hole. Do this hand held so the drill follows the original hole down.
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06-27-12, 09:30 AM
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What hubs are they?
Oftentimes very tight 2.16 spokes holes are mistaken for holes that are too tight to pass a 14g spokes and therefore people assume they're for 15g....until you straighten out the approach and utilize a slight twist.
Very common with very old Campy Nuovo Record hubs.
=8-)
Oftentimes very tight 2.16 spokes holes are mistaken for holes that are too tight to pass a 14g spokes and therefore people assume they're for 15g....until you straighten out the approach and utilize a slight twist.
Very common with very old Campy Nuovo Record hubs.
=8-)
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2. I like anyone will comment in other areas.
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5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
06-27-12, 09:44 AM
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What hubs are they?
Oftentimes very tight 2.16 spokes holes are mistaken for holes that are too tight to pass a 14g spokes and therefore people assume they're for 15g....until you straighten out the approach and utilize a slight twist.
Very common with very old Campy Nuovo Record hubs.
=8-)
Oftentimes very tight 2.16 spokes holes are mistaken for holes that are too tight to pass a 14g spokes and therefore people assume they're for 15g....until you straighten out the approach and utilize a slight twist.
Very common with very old Campy Nuovo Record hubs.
=8-)
Later on, as the use of 14g spokes became more common Campagnolo enlarged the spoke holes to accommodate that.
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FB
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An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
06-27-12, 10:10 AM
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06-27-12, 10:48 AM
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2.1mm is smaller than the thread diameter of a 14mm spoke. These hubs were drilled for 15g which was the prevailing gauge for race wheels in that era. Yes, you can thread a 14g spoke through, but Campagnolo didn't really expect their clients to spend the requisite time.
Later on, as the use of 14g spokes became more common Campagnolo enlarged the spoke holes to accommodate that.
Later on, as the use of 14g spokes became more common Campagnolo enlarged the spoke holes to accommodate that.
Not 2.1mm
=8-)
__________________
5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
06-27-12, 11:00 AM
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Yes, we did this on a routine basis back in the late sixties and early seventies as more and more people were wanting 14g spokes using their older hubs. It's a tiny difference and has no material impact on the hub's strength. (manufacturers, later went to bigger drill without any other changes and nobody ever noticed).
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An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
06-27-12, 11:09 AM
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OK, but the OP didn't furnish a dimension, only stated that his hubs seemed to be drilled 15g, and I accepted that at face value.
And in any case the upper limit for a 2mm spoke thread is 2.169, so 2.16 can still be tight. You usually can thread them but, for instance, on large flange hubs which were drilled at an angle, the misalignment of the hole made it a royal pain to thread tight fitting spokes.
Tight spoke holes are tolerable for hand builders building a few wheels, (and I actually like them because it seems to build a marginally stronger wheel) but for production facilities who expect to build 10-40 wheels per hour, and/or might use spoke loading machinery, it's strictly a no-go.
And in any case the upper limit for a 2mm spoke thread is 2.169, so 2.16 can still be tight. You usually can thread them but, for instance, on large flange hubs which were drilled at an angle, the misalignment of the hole made it a royal pain to thread tight fitting spokes.
Tight spoke holes are tolerable for hand builders building a few wheels, (and I actually like them because it seems to build a marginally stronger wheel) but for production facilities who expect to build 10-40 wheels per hour, and/or might use spoke loading machinery, it's strictly a no-go.
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An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
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WARNING, I'm from New York. Thin skinned people should maintain safe distance.
Last edited by FBinNY; 06-27-12 at 11:53 AM.
06-27-12, 11:52 AM
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So it's both freehand and a drill press.
The other way is with a dremel using a 3/32 drill. The dremel is light enough that you can do it totally freehand holding the hub against your knee.
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An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
06-27-12, 12:05 PM
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Just don't drill your knee.
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06-27-12, 12:15 PM
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I've done dozens of these. The bits aren't long enough to reach your knee, but it's pretty easy to nick a finger if you don't stay focused. You'd have to have pretty poor reflexes to do anything more than nick yourself though.
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An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FB
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An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
