Thorn Cycles Forum
Community => Thorn General => Topic started by: Cambirder on September 27, 2013, 05:23:05 PM
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Unusual event while out on a day ride today. 35km in and I became aware that something not quite right with the back wheel, and a quick check revealed a busted spoke on the drive side, and as I was carying spares decided to fix it and finish the ride rather than slacken off the brake and go straight back home.
While changing the broken spoke I managed to drop the nipple into the rim a couple of time, the second time I did this something odd happened when I was shaking it back out again, one of the other spokes near where I was gripping the rim also gave up the ghost and snapped with a loud ping. Never had one go in my hand before.
Fixed both and road a further 50km without issue, but I think I'm going to get that wheel rebuilt with a new set of spokes before I tackle any long winter rides.
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one of the other spokes near where I was gripping the rim also gave up the ghost and snapped with a loud ping
Wow that is one freaky incident. Definitely gets a person thinking about causes. Where did the spokes break? Down by the hub?
Ah, well, one natural explanation: one spoke goes and that puts more tension on the neighboring spokes so then they're more likely to go.
But still, strange enough!
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Man! Paul! I'd say you got your money's worth from those spokes and it is indeed time for new.
Good on you for the roadside repair; well done!
Next time something like this happens, you can use a little trick to prevent loss of the nipple:
• When you go to remove the old nipple, make sure it is pointing "down" as you unscrew it. This way, the nipple will fall on the floor/ground (perhaps never to be seen again) saving you from the terrible sound of it rattling inside the rim.
• Then, when you go to thread the new nipple on the old spoke, first screw the old spoke into the top (mushroomed) end of the nipple a few turns. The old spoke will serve as a handle to keep the nipple from getting lost inside the rim till it gets started on the new spoke.
Works like a charm and saves lots of time and aggravation.
All the best,
Dan.
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Yes they both went at the hub. A magnetised screw driver would have made things a bit easier.
Another lesson learned today, was don't lean over an upturned bike over the bottom bracket, unless you want a nice oily stain across you previously pristine top >:(
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A magnetised screw driver would have made things a bit easier.
The nipples are plated brass. :(Another lesson learned today...
Oh, no! That is just about the worst; what rotten luck!
Empathy and sympathy your way!
Aluminum oxide from braking on wet rims has an affinity for brand-new high-viz wind jackets, too. Always in the most visible place, of course.
Best,
Dan. (...who thought he was the only one who did that)