I really like this little rack. I use it instead of the bracket that came with my handlebar bag and attach the bag by wrapping the shoulder strap around the stem. I don't expect the brake bosses breaking to be a problem unless you really badly overload this little rack and ride over some pretty rough stuff. Even then I could see the rack failing first. I have not heard of that happening. Anyone else know of a case where it did?

The hardware that came with it seemed fine to me, but i didn't use the bolts they supplied for the brake bosses since the original bolts on my bike were way long any way. I would think that in most cases the original bolts would be fine and the long ones provided with the rack unnecessary.