IaninSheffield
Veteran
- Location
- Sheffield, UK
Having recently attended an informative and enjoyable wheel-building course, I set about my first project to build a dynamo hub front wheel. For a touring bike, the components include a Ryde Sputnik 36-hole 700c rim, SP PV8 hub and Swiss DT competition 2.0-1.8-2.0 spokes with 12mm brass nipples.
I laced up the wheel as we had learned using a 3-cross pattern, began the iterative process of tensioning, adjusting the spoke line, adjusting dishing, both radial and lateral truing and stress relieving. All has gone well apart from one problem I can't seem to resolve - a highly localised (for want of a better word) jink in which the rim pulls sharply and briefly to one side when the wheel is spun in the truing stand. The rest of the rim runs fairly truly, apart from the jink in the vicinity of a single spoke and try as a I might, I can't seem to pull the rim back across by tightening the spoke concerned, either alone or with the other appropriate spokes to either side of it.
I've tried releasing all spoke tension and starting once more from scratch, but unfortunately with the same outcome. I don't know whether it's significant, but the rim joint is a couple of cm away from the localised jink. So, lacking experience, I'm now at a loss what to try and would be really grateful if anyone with greater wisdom and/or experience could suggest things to try.
Many thanks.
I laced up the wheel as we had learned using a 3-cross pattern, began the iterative process of tensioning, adjusting the spoke line, adjusting dishing, both radial and lateral truing and stress relieving. All has gone well apart from one problem I can't seem to resolve - a highly localised (for want of a better word) jink in which the rim pulls sharply and briefly to one side when the wheel is spun in the truing stand. The rest of the rim runs fairly truly, apart from the jink in the vicinity of a single spoke and try as a I might, I can't seem to pull the rim back across by tightening the spoke concerned, either alone or with the other appropriate spokes to either side of it.
I've tried releasing all spoke tension and starting once more from scratch, but unfortunately with the same outcome. I don't know whether it's significant, but the rim joint is a couple of cm away from the localised jink. So, lacking experience, I'm now at a loss what to try and would be really grateful if anyone with greater wisdom and/or experience could suggest things to try.
Many thanks.
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