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Building Rear Wheel


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Whilst were on wheelbuilds. I built my wheel up tonight. Profile on Kris Holm 07 rim. Spokes were right length etc. Tensioned it all how it should be done. The wheel is straight, but i've got one mass off flat spot just in one section :S. Any idea's ? How can i get rid of it ?

Danny.

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Whilst were on wheelbuilds. I built my wheel up tonight. Profile on Kris Holm 07 rim. Spokes were right length etc. Tensioned it all how it should be done. The wheel is straight, but i've got one mass off flat spot just in one section :S. Any idea's ? How can i get rid of it ?

Danny.

Check out the link I just posted Danny, pretty good bit in there about flatspots.

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i used the one in the Wiki section.

didnt understand the "now feed the non-driveside spoke from the driveside with the flange from the non driveside facing the first spoke laced to the right of the valve hole on the side between spoke number 14 and spoke number 7" So some of it was sort of left to guess work, but it looks sorta straight!

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Ok. This flat spot on my new wheel is 18 spokes long :blink: what the f**k ?

I built it how i build every wheel and never have this problem.

Loosen off the spokes opposite the 'flatspot' and tighten up the ones where it is (even if it is 18 spokes long!)

Effectively there's more tension on one half of the wheel that the other (from what it sounds like), so the hub is basically not centred in the rim :)

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How do you stop the wheel flexing? my front wheel is really bad. All the spokes are tight too.

the wheel's got to flex otherwise it'll just snap/crack whatever...

its hard to tell how 'tight' you have the spokes, without a proper spoke tension measurer, i think the recommended tension is around 25

worth popping it to a bike shop for them to have a look or something. maybe the whole wheel just needs tensioning up which means you tighten every nipple on the wheel with the same amount of turns depending on how loose they are at the moment

steve

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Ohhh shit. Ok, I realised the problem is that the hub is not central in wheel build. Yet i havn't realised this until i fully tensioned the wheel...Is this gonna cause me a problem now i have unlaced the wheel and try to build it again ? Will it just go normal ?

Well pissed off, never had this trouble before.

Danny.

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It's easiest to back off all the spokes to get them slack again, wind all the spoke nipples to the same position on the spoke threads and then put tension back on the wheel, turning each spoke nipple the same amount (Usually a turn at a time until some tension appears)... Start at the valve hole and work around the rim to make sure you do a full round each time. Put the rim tape on as soon as the wheel takes tension - If a spoke snaps it will fire out of the wheel and hit you in the face otherwise...

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