If the brazing was done well, I doubt it's any weaker than stock. After all, bikes are held together with just braze. Unless you're worried about the tip of the crack acting as a stress raiser?
@crank started
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If the brazing was done well, I doubt it's any weaker than stock. After all, bikes are held together with just braze. Unless you're worried about the tip of the crack acting as a stress raiser?