Author Topic: Spokes constantly coming loose?  (Read 4587 times)

Offline Spacey

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Spokes constantly coming loose?
« on: October 07, 2010, 09:59:40 AM »
Anyone else having the nipples of the spoke clanging around the inside of the wheel rim? This is the fourth time it has happened now. Getting fed up of having to strip the wheel down, take the tire off, find the nipple, put it all back together grrr.

Offline Leslie

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Re: Spokes constantly coming loose?
« Reply #1 on: October 07, 2010, 10:21:20 AM »
Do you have the radial spoke pattern as Alan has implemented or the old cross pattern?

Bring it on

Offline GM Canada

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Re: Spokes constantly coming loose?
« Reply #2 on: October 07, 2010, 11:58:47 AM »
Anyone else having the nipples of the spoke clanging around the inside of the wheel rim? This is the fourth time it has happened now. Getting fed up of having to strip the wheel down, take the tire off, find the nipple, put it all back together grrr.

Four times does seem like a lot. I had this issue on a 48v1000. After having this happen 3 times I went over the wheel and made sure all the spokes were suffeciently tight enough and I had no further issues.

Gary
« Last Edit: October 07, 2010, 10:07:47 PM by GM Canada »

Offline Spacey

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Re: Spokes constantly coming loose?
« Reply #3 on: October 13, 2010, 04:09:47 PM »
I think it's a one off as the wheel you sent me or had them send me is very round and not oval like the first MP wheel I got. I'll slap some Locktite on the nipples to stop them getting loose.

Offline Sundsvall

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Re: Spokes constantly coming loose?
« Reply #4 on: October 13, 2010, 08:11:50 PM »
What if you have to readjust the spokes after you have them glued?
I believe in the fact that truly adjusted spokes do not have to be tightened every now and then, even if there’s a lot of torque. Forgive me if I am underestimating you and give you advice you’ve already done or knew about.

I’ll suggest that you loosen all spokes and make sure the rim is round and straight without any spokes.

Tighten all the nipples ‘till you don’t see the threads (with your fingers, no tools).

Tighten the nipples half a turn at the time and knock on them to hear their tone (should be the same if the spokes are the same length. Check the roundness and the straightness as you make it tighter.

Press the spokes two and two (with your glove protected hand) to stress relief them and keep on make the tone higher.

The correct tightness of the spokes is a hard thing to explain and I will not even try to. I have an idea though which maybe isn’t realistic. There are expensive spoke tensiometers, which means there must be a table somewhere with the correct tension for a given length and diameter. If we know all this, it should be possible to calculate the correct tone on the spoke and use a cheap tuning device to tune them to the correct tension.


Peter
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