Is it safe to install these V Brakes? Arms don't sit flush with bosses
This is a duplicate question but I couldn't find it.
It's fine. What you're looking at is the old brake pivots directly on the stud, but the new one mounts on the stud and has its own integral pivot. On the old one, you tighten the bolt very gently so you don't mushroom the post because the bolt is bottoming against the tip of the post. On the integral type, tighten it pretty good (8-10Nm). They both go on the same posts.