Spoke Nipple failure

Helpful information and requests for assitance and advice
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Re: Spoke Nipple failure

Postby asterysk_usa » Sat Nov 16, 2019 5:02 am

Mick D wrote:Hi

I bought my spoke spanner from DRC.

Regards Mick


I found DRC and the spanners look very impressive :

Image

I had been looking for a whitworth old style spoke spanner but looking ta the DRC product made me realise I probably have metric nipples seeing as I bought them in 2013 , thankyou for the steer to DRC
1954 AJS 18S Cyprus export (frame decode says 1954 but many components match a 1955).

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Re: Spoke Nipple failure

Postby John Jarrett » Sat Nov 16, 2019 6:46 am

Are your spokes long enough? Did they go all the way through the nipple? I just wonder if the nipple is breaking at the point the spokes end which happens to be on the inside of the rim?

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Re: Spoke Nipple failure

Postby Mick D » Sat Nov 16, 2019 6:46 am

Hi

This is my spoke spanner:

https://www.devonrimcompany.com/sundrie ... ke-spanner

Post a link to those sexy coloured ones would you please?

Regards Mick

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Re: Spoke Nipple failure

Postby asterysk_usa » Sat Nov 16, 2019 8:41 am

Mick D wrote:Hi

Post a link to those sexy coloured ones would you please?

Regards Mick


http://www.drcproducts.com/tool/d59-15/index.html

https://www.amazon.com/DRC-Pro-Spoke-Wr ... B004AIWMA4
1954 AJS 18S Cyprus export (frame decode says 1954 but many components match a 1955).

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Re: Spoke Nipple failure

Postby asterysk_usa » Sat Nov 16, 2019 8:43 am

John Jarrett wrote:Are your spokes long enough? Did they go all the way through the nipple? I just wonder if the nipple is breaking at the point the spokes end which happens to be on the inside of the rim?


I was wondering the same thing, the break point is pretty much exactly where the spoke ends inside the nipple, I was expecting the spoke to come all the way through the nipple but it doesn't. I'll contact Devon Rim again and ask
1954 AJS 18S Cyprus export (frame decode says 1954 but many components match a 1955).

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Re: Spoke Nipple failure

Postby asterysk_usa » Sat Nov 16, 2019 8:44 am

Image

I’m thinking the spoke should screw further into the nipple


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Last edited by asterysk_usa on Sat Nov 16, 2019 8:58 am, edited 1 time in total.
1954 AJS 18S Cyprus export (frame decode says 1954 but many components match a 1955).

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Re: Spoke Nipple failure

Postby alanengineer » Sat Nov 16, 2019 8:53 am

I have never had spokes that short from Devon Rim company. Certainly a reason for failure, but i stand by my original worry about alignment, and this may give rise to the spokes not reaching far enough into the nipple

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Re: Spoke Nipple failure

Postby asterysk_usa » Sat Nov 16, 2019 9:09 am

alanengineer wrote:I have never had spokes that short from Devon Rim company. Certainly a reason for failure, but i stand by my original worry about alignment, and this may give rise to the spokes not reaching far enough into the nipple


Is there any way I can check by doing some measurements , I have absolutely no knowledge of spoke wheels, its all a black art to me !
1954 AJS 18S Cyprus export (frame decode says 1954 but many components match a 1955).

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Re: Spoke Nipple failure

Postby Mick D » Sat Nov 16, 2019 10:02 am

Hi

The original spokes I removed from my 61 G3 with 19" rims and FW hubs measure 6 - 15/16" rear and 5 - 7/8" front.

I maintain that it is highly unlikely that the spoke orientation out of the hub will be incorrect - what could be wrong is the alignment of the spoke to a correctly pierced hole in the rim. If you imagine the top of the wheel on the bike, the rim piercings are orientated to accept the spokes from the front or rear and left or right side of the hub - front and rear are easily determined and not likely to be wrong, left and right are not so obvious this may be wrong and could contribute to your issue.

Spoke Direction.png


Regards Mick
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Re: Spoke Nipple failure

Postby asterysk_usa » Sat Nov 16, 2019 10:31 am

Mick D wrote:Hi

The original spokes I removed from my 61 G3 with 19" rims and FW hubs measure 6 - 15/16" rear and 5 - 7/8" front.

I maintain that it is highly unlikely that the spoke orientation out of the hub will be incorrect - what could be wrong is the alignment of the spoke to a correctly pierced hole in the rim. If you imagine the top of the wheel on the bike, the rim piercings are orientated to accept the spokes from the front or rear and left or right side of the hub - front and rear are easily determined and not likely to be wrong, left and right are not so obvious this may be wrong and could contribute to your issue.

Spoke Direction.png


Regards Mick


How do you measure the spokes, from tip of dome head or shank under head ?

From top of dome I get 5-5/8" & 6-7/8" (I place ruler and spokes vertically on a table )
1954 AJS 18S Cyprus export (frame decode says 1954 but many components match a 1955).

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