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• #2
picture? might help as i'm not 100% sure what you mean.
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• #3
This is a problem with many many many rims.
It happens quite alot on cheap rims, and occasionally on a more expensive rim, and on really cheap rims its almost guaranteed to happen.Its not the end of the world, and can't be felt when riding in truth. Unless you are running 150+ PSI on boards of course.
As for it not happening on the open sport, I'm sorry to say that they aren't very good at all, so yes it happens, quite alot. But don't worry. You are more likely to taco the rim then notice the flatspot. Promise. :)
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• #4
try slackening some spokes on the opposite side of the rim ie: if the flat spot was at the 12 o'clock point then loosen some spokes at the 6 o'clock section it should helpwith concentricity
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• #5
^cheers, I'll give this a go.
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• #6
heretic
put the wheel on a flat surface and gently tap it with a hammer
never understood the need for a truing stand
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• #7
I had a flat spot on a deep v I bought of t'internet, turned out that the spokes were too short and it was fine after I got it relaced with new longer spokes.
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• #8
James, don't worry unduly. Peter White works to a tolerance of 1mm radial, which when you look at it in a trueing stand is a chasm, but when a tyre is mounted to the rims becomes less significant. I don't think tyres are made to be perfectly round so your hours spent taking out a slight hop/dip go out the window when the bead is seated. Lateral true and keeping tensions even is more important.
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• #9
it's been used for a few rides now, and I can't notice anything. There's more potholes per wheel rotation than rim irregularities anyway, so it's almost impossible to tell. thanks for the advice
Not sure if this has been covered before. The mavic open sport rim I'm using for my wheel build has a dip/flat point where the logo/joint is. I've spent some time loosening various spokes but so far haven't been able to get rid of it entirely, although did manage to reduce it a little. I've heard that cheap rims sometimes have this problem, but I would have thought the open sport should be solid/reliable rim. This only became noticeable after fulling lacing, truing and tensioning - so I'm really hoping I haven't just wasted hours on a bad rim. Does anyone have any experience with these kinds of rim issues? Is a small dip noticeable once the tyre's on?