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London Fixed Gear and Single-Speed is a community of fixed gear and single-speed cyclists.
cycleclinic
I've had a rather odd wheelbuilding experience recently, so looking for advice/reassurance.
I'm building a new set of wheels for my better half's tandem (AKA Our Tandem). Velocity Chukker rims, DT Swiss Alpine III spokes, Hope RS4 36h hubs. Should be pretty bloody sturdy - the front wheel alone is over 1kg.
However, I've been using Sapim brass nipples. Shouldn't be a problem, as the spokes are 2mm at the threaded end, and the Sapim brass nipps are 2mm. However, on a few of the spokes, when I've been tensioning them, there's been a loud bang and the spoke has gone loose. As far as I can tell, the threaded part of the spoke has just slipped through the threaded part of the nipple, almost as if the threads on the spokes are only just engaging with the spokes on the nipples.
Anyone had this before? I'm tempted to rebuild with DT Swiss nipples, but I'm not sure this is actually the underlying issue.