Road Bike Spoke Adv...
 

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[Closed] Road Bike Spoke Advice needed

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My Planet-X AL30 rear wheel needs a rebuild, only 700 miles old but it's been flexing too much and today snapped 2 spokes. I think my best plan is to rebuild it with new spokes.

Anyway, there doesn't seem to be a great deal of availability out there for suitable 278 and 280 spokes apart from Sapim Race. Are these a good all round spoke?
I don't race but push fairly hard when I can and not too heavy at around 80kg


 
Posted : 08/09/2012 6:09 pm
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Used by plenty of wheel builders. Think they are an alternative to DT competition.


 
Posted : 08/09/2012 6:23 pm
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Sapim race spokes are excellent.


 
Posted : 08/09/2012 6:25 pm
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Yes, good spokes.

Won't solve flex tho


 
Posted : 08/09/2012 6:26 pm
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Cheers

I don't think the flex is down to the spokes per se, just a poor build, the front was flexing a bit too but 1/2 turn all around cured the most of it.
I can't find matching spokes to repair the rear so easier just to do the lot


 
Posted : 08/09/2012 6:34 pm
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Sheldon says-

Some believe that a wheel built with tighter spokes is stiffer. It is not. Wheel stiffness does not vary significantly with spoke tension unless a spoke becomes totally slack.

I measured the deflection of Wheel #2 while gradually loosening the spokes in quarter turn increments. The wheel did not display any significant change in stiffness until the spokes were so loose some became totally slack.


 
Posted : 08/09/2012 6:47 pm
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Well mine certainly did today, before putting more tension in it, it was much easier to deflect by hand.
On the road, it now doesn't rub the brake when out of the saddle

so I dunno then?


 
Posted : 08/09/2012 6:50 pm
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Is it 24 spokes in the rear?


 
Posted : 08/09/2012 6:50 pm
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I don't think Sheldon is quite right, as jota says.


 
Posted : 08/09/2012 6:52 pm
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yeah 24

I need to do it anyway so if the rebuild doesn't work, it's only £12 lost

I've lost all confidence in the wheel now, I was dumped on my arse today when the spokes bust as I got out of the saddle for a little steep rise.


 
Posted : 08/09/2012 6:52 pm

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