Originally Posted by
scale
i do have another Fuji Gran Touring frameset that is the exact same geometery. The problem with it is it must have passed through "quality control" by mistake. The front downtube lug has a space in it between the frametube and the lug like it isnt fully brazed. I am sure this is common on lowend frames. I dont know how safe it is which is why i never finished it.
While not very confidence inspiring, that lug probably isn't any big deal. Voids and incomplete brazing are unfortunately somewhat common on production bikes. I've seen several cases of separated lugs, where only the paint, or a mm or so of filler was holding things together, sometimes for decades.
If the rest of the lug was properly brazed, it should last as long as anything else.