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Question regarding spokes on high-profile wheels
Hello: A couple of months ago I bought me a used but never riden 10
year old road bicycle (F. Moser steal frame and Mirage set-up). In the last couple of months I rode around 5000 km on it. However, 1000 km ago a spoke at the rear high-profile wheel from Camapgnolo "Zonada" broke. A mechnic replaced it. Last weekend again a spoke broke and I went to a big dealer. I asked him whether he would like to replace all of the 16 spokes by newer ones. He told me it wouldn't make sense that he starts to replace them. The best what I can do in my situation is to send (though 10 years old but fairly new as already mentioned) it to Campagnolo and they should replace the spokes because he will fail to give tension to spokes proper. My problem: at one side the spokes are fairly stiff but at the other side some spokes are loose though the rear wheel is perfectly trued. Is it true that one cannot go to replace all the spokes at high profile wheels? Thanks, Schneewittchen |
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Question regarding spokes on high-profile wheels
Förster vom Silberwald wrote: My problem: at one side the spokes are fairly stiff but at the other side some spokes are loose though the rear wheel is perfectly trued. I understand that, eg, spoke on the upper half of the wheel are firm, and those of the lower half are loose? Solution : buy a new wheel. It seems the rim is slightly bent or out of round, this is hard to repair efficiently - and if not repaired you will broke spoke after spoke, and you don't have too many on that wheel do you? If those of the right (gear) side are firmer than those of the left side, it is much more normal! The difference in tension may be up to 2 times... Or you may check the wheel dish (centering of the rim in the frame)? |
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Question regarding spokes on high-profile wheels
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Question regarding spokes on high-profile wheels
Förster vom Silberwald wrote:
He told me it wouldn't make sense that he starts to replace them. The best what I can do in my situation is to send (though 10 years old but fairly new as already mentioned) it to Campagnolo and they should replace the spokes because he will fail to give tension to spokes proper. The tension in a 16 spoke wheel is so high that a fixture is required to unload the spokes so that they can be adjusted. My problem: at one side the spokes are fairly stiff but at the other side some spokes are loose though the rear wheel is perfectly trued. The right side spokes (in a rear wheel) will have much more tension than left side spokes. That is normal. But all the spokes on one side should have similar tension. If you've broken two spokes in a short time, it's probably best to replace them all. Or better yet, switch to 32 or 36 spoke wheels. Art Harris |
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Question regarding spokes on high-profile wheels
Förster vom Silberwald wrote: Hello: A couple of months ago I bought me a used but never riden 10 year old road bicycle (F. Moser steal frame and Mirage set-up). In the last couple of months I rode around 5000 km on it. However, 1000 km ago a spoke at the rear high-profile wheel from Camapgnolo "Zonada" broke. A mechnic replaced it. Last weekend again a spoke broke and I went to a big dealer. I asked him whether he would like to replace all of the 16 spokes by newer ones. He told me it wouldn't make sense that he starts to replace them. The best what I can do in my situation is to send (though 10 years old but fairly new as already mentioned) it to Campagnolo and they should replace the spokes because he will fail to give tension to spokes proper. My problem: at one side the spokes are fairly stiff but at the other side some spokes are loose though the rear wheel is perfectly trued. Is it true that one cannot go to replace all the spokes at high profile wheels? Not true but spokes break because of a deformed rim, not because something is wrong with the spokes.... Thanks, Schneewittchen |
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Question regarding spokes on high-profile wheels
Förster vom Silberwald wrote: However, on the other (not gear side) side some spokes are firm and some are not so firm. I always thought that even if spokes on the not-gear side are not that firm that all should have the same "firmness" at least for one of the sides. Yes you're right! Such an unevenness of tension *with a true wheel* does usually indicate a bent rim. I cannot buy quickly yet another wheel-set because me gearing is old Campagnolo 8x (53/39 and 13-26). I'd say you would be able to mount your 8sp cassette on a 9sp freehub - I'm sure of that with Shimano, but don't know Campy enough. |
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Question regarding spokes on high-profile wheels
Art Harris wrote:
F�rster vom Silberwald wrote: He told me it wouldn't make sense that he starts to replace them. The best what I can do in my situation is to send (though 10 years old but fairly new as already mentioned) it to Campagnolo and they should replace the spokes because he will fail to give tension to spokes proper. The tension in a 16 spoke wheel is so high that a fixture is required to unload the spokes so that they can be adjusted. that's not true! tension is same ballpark as a normal wheel. and you can adjust them no problem. you're propagating jobstian myth there art. My problem: at one side the spokes are fairly stiff but at the other side some spokes are loose though the rear wheel is perfectly trued. The right side spokes (in a rear wheel) will have much more tension than left side spokes. That is normal. But all the spokes on one side should have similar tension. If you've broken two spokes in a short time, it's probably best to replace them all. Or better yet, switch to 32 or 36 spoke wheels. again, entirely unnecessary. 36 spoke wheels date from the time of flexible low-pro rims and poor fatigue-prone spokes. today, higher profile rims and much more fatigue resistant spokes make high spoke count wheels complete overkill. Art Harris |
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Question regarding spokes on high-profile wheels
� wrote:
Hello: A couple of months ago I bought me a used but never riden 10 year old road bicycle (F. Moser steal frame and Mirage set-up). In the last couple of months I rode around 5000 km on it. However, 1000 km ago a spoke at the rear high-profile wheel from Camapgnolo "Zonada" broke. A mechnic replaced it. Last weekend again a spoke broke and I went to a big dealer. I asked him whether he would like to replace all of the 16 spokes by newer ones. He told me it wouldn't make sense that he starts to replace them. The best what I can do in my situation is to send (though 10 years old but fairly new as already mentioned) it to Campagnolo and they should replace the spokes because he will fail to give tension to spokes proper. My problem: at one side the spokes are fairly stiff but at the other side some spokes are loose though the rear wheel is perfectly trued. Is it true that one cannot go to replace all the spokes at high profile wheels? Thanks, Schneewittchen may be a bad batch of spokes or even spoke damage. ever dropped the chain between the spokes and the cassette? make sure the rim is true, then have the wheel re-spoked with a good brand like sapim or d.t. |
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Question regarding spokes on high-profile wheels
jim beam wrote:
The tension in a 16 spoke wheel is so high that a fixture is required to unload the spokes so that they can be adjusted. that's not true! tension is same ballpark as a normal wheel. I have no precise data about it, but would have thought that the sum of the spokes tension in a wheel should remain of the same order of magnitude to prevent spoke slackening? That would imply that the spoke tension of a 16-spokes wheel should be twice as much as the one of a 32-spokes one? If you've broken two spokes in a short time, it's probably best to replace them all. Or better yet, switch to 32 or 36 spoke wheels. again, entirely unnecessary. 36 spoke wheels date from the time of flexible low-pro rims and poor fatigue-prone spokes. today, higher profile rims and much more fatigue resistant spokes make high spoke count wheels complete overkill. Mechanical conception is always a compromise, and I'd say that if 36-spokes wheels may be overbuilt for sportive purposes, 16-spokes one might in the other hand still be underbuilt for someone wishing more durability than performance... Is that diplomatic enough ;o) ? t To OP : Freundlichen Grüssen von den (französichen ;o) Zwergen, Nicolas |
#10
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Question regarding spokes on high-profile wheels
Hi, you say a mechanic replaced a spoke for you. A lot of bicycle
shops employ children (teenaged children) to do stuff like this, so the results may vary. Wheel building is not brain surgery and it is a good skill to learn if you ride a bicycle. You might find this article interesting:- http://www.sheldonbrown.com/wheelbuild.html Hope this helps you. Lewis. ****** Förster vom Silberwald wrote: Hello: A couple of months ago I bought me a used but never riden 10 year old road bicycle (F. Moser steal frame and Mirage set-up). In the last couple of months I rode around 5000 km on it. However, 1000 km ago a spoke at the rear high-profile wheel from Camapgnolo "Zonada" broke. A mechnic replaced it. Last weekend again a spoke broke and I went to a big dealer. I asked him whether he would like to replace all of the 16 spokes by newer ones. He told me it wouldn't make sense that he starts to replace them. The best what I can do in my situation is to send (though 10 years old but fairly new as already mentioned) it to Campagnolo and they should replace the spokes because he will fail to give tension to spokes proper. My problem: at one side the spokes are fairly stiff but at the other side some spokes are loose though the rear wheel is perfectly trued. Is it true that one cannot go to replace all the spokes at high profile wheels? Thanks, Schneewittchen |
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