Timeline for How to reliably tell if the rim is correctly drilled?
Current License: CC BY-SA 4.0
12 events
| when toggle format | what | by | license | comment | |
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| Dec 15, 2018 at 19:20 | comment | added | greenoldman | Many, many thanks for this clarification. I know the extreme comments are not welcome on SE but your comments helped me a lot! Thank you once more. | |
| Dec 15, 2018 at 19:19 | vote | accept | greenoldman | ||
| Dec 15, 2018 at 18:58 | comment | added | ojs | You shift the other side in the opposite direction. Lennard Zinn's instructions are sometimes difficult to understand, try using Sheldon Brown's version instead. | |
| Dec 15, 2018 at 18:47 | comment | added | greenoldman | There will be crossing :-) When the rim has a shift of one hole -- since there are two variants of the rim, one will have valve at 12 o'clock (see the picture above) and the other variant of the rim will have valve in between next spokes, crossed. | |
| Dec 15, 2018 at 17:19 | history | edited | ojs | CC BY-SA 4.0 |
typo, update from discussion
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| Dec 15, 2018 at 17:10 | comment | added | ojs | Zinn is correct here. The lacing works, because the spoke that goes into the hole next to valve goes to the other side. Both sides have to be aligned so that the spokes are not crossing at the valve location. | |
| Dec 15, 2018 at 16:52 | comment | added | greenoldman | Thank you (in short Zinn starts with rim placed down and taking the first hole counterclockwise to valve that is higher than the valve -- this makes two versions possible, because the higher can be first or second hole). So it seems two sources now are saying basically that both kinds are "correct", so even if I identify which version I have I will not able to return and replace the rim. Pity. Anyway, so I am left with at least identifying it for sure :-). | |
| Dec 15, 2018 at 16:43 | comment | added | ojs |
I don't have the Zinn book, could you describe how he explains it? If you read for example Sheldon Brown's instructions at sheldonbrown.com/wheelbuild.html, it is explicitly mentioned that rims may have the holes drilled at different orientations. Look for the paragraph starting with Rims are drilled either "right handed" or "left handed"
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| Dec 15, 2018 at 16:35 | comment | added | greenoldman | As for wheelbuilding -- for example the same way Zinn describes it in his book. However if the rim decides where to place the leading spoke (as in the book) the possible outcomes are two: perfectly built wheel or the rim with spokes crossed somewhat over the valve. Thus I consider the second outcome, or rather the rim, as incorrect one. | |
| Dec 15, 2018 at 16:19 | comment | added | ojs | I don't really understand how you are figuring wheelbuilding. There are no leading and trailing holes on the rim, just left and right ones. The rim drilling decides whether the leading spoke next to valve is on the left or right. | |
| Dec 15, 2018 at 14:35 | comment | added | greenoldman | +1, thank you. As for the building, do I correctly understand you that your advice is force-take the leading hole for spoke even if it is the incorrect hole (more distant)? This would of course allow me to have parallel spokes over the valve but I would be connecting spokes to the other side holes of the rim. Sure, slightly, but still... :-) | |
| Dec 15, 2018 at 12:57 | history | answered | ojs | CC BY-SA 4.0 |