Spoke Diameter Discrepancy - 14ga
#1
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Spoke Diameter Discrepancy - 14ga
Been popping spokes on an old wheel set. Its the rear freewheel side spokes that have been popping after a slow climbs. Supposedly they are straight stainless 14ga spokes on a 700c Wheel Set I purchased off the sorely missed Harris Cyclery site many years ago. I am replacing them with Swiss DT 14ga stainless spokes and have had no problems.
I got out the micrometer and the old spokes measure 1.96mm and the Swiss DT measure 2.0.
Is this normal?
I got out the micrometer and the old spokes measure 1.96mm and the Swiss DT measure 2.0.
Is this normal?
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#2
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And .04mm is how many inches?
A brand new drawing die may produce even thinner than that?
What does your mic read when it's zeroed?
A brand new drawing die may produce even thinner than that?
What does your mic read when it's zeroed?
Last edited by Bill Kapaun; 04-24-22 at 12:04 AM.
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#4
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In manufacturing there is a tolerance on drawn wire. 0.04 mm = 0.0015 inches. I would hazard a guess that +/- 0.002 inches is normal tolerance here, so no issue. Spoke breakage is due to several factors that come to mind such as improperly tensioned spokes or old and failing due to fatigue.
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Understood... Yes it is zeroed and multiple spokes were measured over thier entire length with almost no variance.
Good... That's what I thought. I figure the old spokes are closer to 14ga rather than 15ga and they are generic.
I think the next time I put a wheel set together I will go for Swiss DT 14ga and use Swiss DT 13ga on the rear dive drive side of the wheel. I hover around 235 to 250 pounds and have not had any problems with popping spokes except on my old wheel sets on the rear drive. Most of my rides are slow and up and down so that rear wheel really gets a workout!
Good... That's what I thought. I figure the old spokes are closer to 14ga rather than 15ga and they are generic.
Yes Sir... Just like me...
I think the next time I put a wheel set together I will go for Swiss DT 14ga and use Swiss DT 13ga on the rear dive drive side of the wheel. I hover around 235 to 250 pounds and have not had any problems with popping spokes except on my old wheel sets on the rear drive. Most of my rides are slow and up and down so that rear wheel really gets a workout!
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Been popping spokes on an old wheel set. Its the rear freewheel side spokes that have been popping after a slow climbs. Supposedly they are straight stainless 14ga spokes on a 700c Wheel Set I purchased off the sorely missed Harris Cyclery site many years ago. I am replacing them with Swiss DT 14ga stainless spokes and have had no problems.
I got out the micrometer and the old spokes measure 1.96mm and the Swiss DT measure 2.0.
Is this normal?
I got out the micrometer and the old spokes measure 1.96mm and the Swiss DT measure 2.0.
Is this normal?
#7
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Sorry for not giving better description as I have never had a spoke fail anywhere but at the J bend. This particular wheel set has over 10 years use on some pretty rough roads with a heavy guy on top of them. I really am mot complaining but when I measured the spoke diameters I noted the difference. They are closer to 14ga than 15ga and it is really a minuscule in difference.
In the future I am considering the Sapim Strong spokes. 13ga at the neck and 14ga on the length and just a little cheaper than the Swiss DT Alpine III
In the future I am considering the Sapim Strong spokes. 13ga at the neck and 14ga on the length and just a little cheaper than the Swiss DT Alpine III
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Sorry for not giving better description as I have never had a spoke fail anywhere but at the J bend. This particular wheel set has over 10 years use on some pretty rough roads with a heavy guy on top of them. I really am mot complaining but when I measured the spoke diameters I noted the difference. They are closer to 14ga than 15ga and it is really a minuscule in difference.
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Sorry for not giving better description as I have never had a spoke fail anywhere but at the J bend. This particular wheel set has over 10 years use on some pretty rough roads with a heavy guy on top of them. I really am mot complaining but when I measured the spoke diameters I noted the difference. They are closer to 14ga than 15ga and it is really a minuscule in difference.
In the future I am considering the Sapim Strong spokes. 13ga at the neck and 14ga on the length and just a little cheaper than the Swiss DT Alpine III
In the future I am considering the Sapim Strong spokes. 13ga at the neck and 14ga on the length and just a little cheaper than the Swiss DT Alpine III
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As a solution for my current problem, I replaced all the spokes on the drive side with new Sapim 14ga spokes. I then loosened to sloppy the entire wheel and then trued laterally, radially and set the dish. The current tension on the spokes closely matches the new wheel set. I am confident the rebuilt wheel has new life and expect my spoke popping to be solved.
As to the OP: It appears that a difference in spoke diameter of 0.04mm is insignificant. The diameter of the old spokes at 0.96mm make them closer to 14ga then 15ga.
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