• Proper builders have usually built enough wheels so that they've seen a few of their own sub optimal builds that they have (hopefully) learnt from.....

    Too loose and the wheel will shake loose and /or get prematurely fatigued spokes.

    Too tight and the nips will pull through the rim because the rim fatigues around the hole/eyelet (aluminium alloys don't have much plastic deformation in them.

    Building with too little tension is just stupid and exactly what is too little tension depends to some extent what the riders weighs and how he/she rides (eg radical sideways honking can nail even quite a well specc'ed and built wheel) also the intended use track is less demanding if all else is equal than 'cross for example)

    Building with too much tension is a little more forgiveable but depends mostly on which rim is selected - so say you think you need 140kg force for the wheel to stay together (24 spoker under 100kg rider on rough roads just being slightly silly for a moment)- and then you tension a DT 1.1 like that- probably will pull through the rim in a few months. Mostly an error of rim selection, not building.

    I have two dolls labelled mavic and mavic UK- I poke their heads in a candle flame weekly. Actually the tech website has useful info erd's and such, just ignore the tension recco's.

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