Mick F wrote:Just a question regarding interlacing or not on 20" (406) wheels.
It won't be long, and I'll need to replace the rims on my Moulton TSR. …….replaced a couple on the rear where they broke at the nipple......
When I next build them up, should I interlace or not??
If you are re-rimming (using the extant spokes) then keep them as they are, provided the rate/consequence of breakage is acceptable to you.
If you are using new spokes and want them not to break, you presumably need better angles into the nipples and/or better setting/stress-relief. You may find it easier to set/stress-relieve each (short) spoke if the crossings are unbraced, since they can be done individually, whereas with short spokes they tend to act as a pair when the crossings are braced, and are less easy to handle.
BTW if you are worried about nipples unscrewing themselves then some kind of soft threadlock will usually do the job. However this won't stop you from riding around on a wheel where all the spokes are too slack, which if it happens, is a pretty bad thing.