I've got some on my bike that I did myself. Been commuting with it, sometimes using one front pannier and sometimes with two. No problems to report
If you're talking about dropout eyelets for a rack, I'd also be inclined to trust them. I've seen framebuilders add them, and I think for a while Framebuilder Supply was even selling some dropouts that had an extra eyelet brazed on. Bronze brazing is quite strong. Normally if I'm trying to remove a bronze brazed thing, it will break the braze-on bit before the bronze is broken.
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Owner & co-founder, Cycles René Hubris. Unfortunately attaching questionable braze-ons to perfectly good frames since about 2015. With style.
Last edited by scarlson; 07-14-20 at 12:47 PM.