These handlebar brackets fit 3-rail, 5-rail, and 7-rail CETMA Racks, and
are compatible with most newer bikes with upright bars. Hardware included.
Note: These brackets can be found at hardware stores. Commonly known as
"conduit hangers", they're used by electricians to attach electrical conduit
to walls. While they're not specifically made for bicycles, their
size, design, and obtainability make them perfect. I'm telling
you this so that you won't feel dumb when your electrician-neighbor
says, "Hey man, those are conduit hangers".